ok dodałem alsa-lib  i przywróciłem oryginalny plik konfiguracyjny wcześniej było to co w instrukcji na stronie podanej wyżej, czyli (oczywiście ścieżki odpowiednio zmienione):
music_directory "/hdd/mpd/music"
    playlist_directory "/hdd/mpd/playlists"
    db_file "/hdd/mpd/database"
    pid_file "/hdd/mpd/pid"
    state_file "/hdd/mpd/state"
    input {
        plugin "curl"
    }
    mixer_type "software"

jedna wyskakiwał mi błąd w linii input (nierozpoznane polecenie) więc cały input {} usunąłem.
Po uruchomieniu otrzymuję:
root@OpenWrt:~# /etc/init.d/mpd start
sh: #: unknown operand
added /Except_the_New_Girl.mp3
No "audio_output" defined in config file
Attempt to detect audio output device
Attempting to detect a alsa audio device
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:3513:(_snd_config_evaluate) function snd_func_card_driver returned error               : No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:3513:(_snd_config_evaluate) function snd_func_concat returned error: No                such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:3513:(_snd_config_evaluate) function snd_func_refer returned error: No s               uch file or directory
ALSA lib conf.c:3985:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2202:(snd_pcm_open_noupdate) Unknown PCM default
Error opening default ALSA device: No such file or directory
Attempting to detect a oss audio device
oss: Error opening OSS device "/dev/dsp": No such file or directory
Successfully detected a oss audio device
adding: Except_the_New_Girl.mp3
Chris Isaak - Except the New Girl
[playing] #1/1   0:00/3:21 (0%)
volume:100%   repeat: off   random: off
Chris Isaak - Except the New Girl
[playing] #1/1   0:00/3:21 (0%)
volume:100%   repeat: on    random: off

Nie mam katalogu /dev/dsp ale mam fizycznie /dev/sound z zawartością:
root@OpenWrt:/dev/sound# ls -al
drwxr-xr-x    1 root     root            0 Jan  1  1970 .
drwxr-xr-x    1 root     root            0 Jan  1  1970 ..
crw-------    1 root     root      14,   3 Jan  1  1970 dsp
crw-------    1 root     root      14,   0 Jan  1  1970 mixer
crw-------    1 root     root      14,  16 Jan  1  1970 mixer1

po włączeniu:
root@OpenWrt:/dev/sound# mpc play
Chris Isaak - Except the New Girl
[playing] #1/1   2:35/3:21 (77%)
volume:100%   repeat: on    random: off
root@OpenWrt:/dev/sound#

słyszę tylko cichy ciągły pisk.

pozdr
Radek

plik mpd.conf
# An example configuration file for MPD
# See the mpd.conf man page for a more detailed description of each parameter.

# Required files and directories ##############################################
#
# This setting controls the top directory which MPD will search to discover the
# available audio files and add them to the daemon's online database.
#
music_directory            "/home/share/torrenty/muza"
#
# This setting sets the MPD internal playlist directory. The purpose of this
# directory is storage for playlists created by MPD. The server will use
# playlist files not created by the server but only if they are in the MPD
# format.
#
playlist_directory        "/home/share/torrenty/muza/.mpd/playlists"
#
# This setting sets the location of the MPD database. This file is used to
# load the database at server start up and store the database while the
# server is not up.
#
db_file                "/home/share/torrenty/muza/.mpd/database"
#
# These settings are the locations for the daemon log files for the daemon.
# These logs are great for troubleshooting, depending on your log_level
# settings.
#
log_file            "/home/share/torrenty/muza/.mpd/log"
error_file            "/home/share/torrenty/muza/.mpd/error-log"
###############################################################################

# Optional files ##############################################################
#
# This setting sets the location of the file which stores the process ID
# for use of mpd --kill and some init scripts. This setting is disabled by
# default.
#
pid_file            "/home/share/torrenty/muza/.mpd/pid"
#
# This setting sets the location of the file which contains information about
# most variables to get MPD back into the same general shape it was in before
# it was brought down. This setting is disabled by default.
#
state_file            "/home/share/torretny/muza/.mpd/state"
#
###############################################################################

# General music daemon options ################################################
#
# This setting specifies the user that MPD will run as, if set. MPD should
# never run as root and you may use this setting to make MPD change its user
# id after initialization. Do not use this setting if you start MPD as an
# unprivileged user. This setting is disabled by default, and the server will
# run as root.
#
#user                "nobody"
#
# This setting sets the address for the daemon to listen on. Careful attention
# should be paid if this is assigned to anything other then the default, any.
# This setting can deny access to control of the daemon.
#
# For network
#bind_to_address        "any"
#
# And for Unix Socket
#bind_to_address        "~/.mpd/socket"
#
# This setting is the port that is desired for the daemon to get assigned to.
#
#port                "6600"
#
# This setting controls the type of information which is logged. Available
# setting arguments are "default", "secure" or "verbose". The "verbose" setting
# argument is recommended for troubleshooting, though can quickly stretch
# available resources on limited hardware storage.
#
#log_level            "default"
#
# If you have a problem with your MP3s ending abruptly it is recommended that
# you set this argument to "no" to attempt to fix the problem. If this solves
# the problem, it is highly recommended to fix the MP3 files with vbrfix
# (available from <http://www.willwap.co.uk/Programs/vbrfix.php>), at which
# point gapless MP3 playback can be enabled.
#
#gapless_mp3_playback            "yes"
#
# This setting enables MPD to create playlists in a format usable by other
# music players.
#
#save_absolute_paths_in_playlists    "no"
#
# This setting defines a list of tag types that will be extracted during the
# audio file discovery process. Optionally, 'comment' can be added to this
# list.
#
#metadata_to_use    "artist,album,title,track,name,genre,date,composer,performer,disc"
#
###############################################################################

# Symbolic link behavior ######################################################
#
# If this setting is set to "yes", MPD will discover audio files by following
# symbolic links outside of the configured music_directory.
#
#follow_outside_symlinks    "yes"
#
# If this setting is set to "yes, MPD will discover audio files by following
# symbolic links inside of the configured music_directory.
#
#follow_inside_symlinks        "yes"
#
###############################################################################

# Zeroconf / Avahi Service Discovery ##########################################
#
# If this setting is set to "yes", service information will be published with
# Zeroconf / Avahi.
#
#zeroconf_enabled        "yes"
#
# The argument to this setting will be the Zeroconf / Avahi unique name for
# this MPD server on the network.
#
#zeroconf_name            "Music Player"
#
###############################################################################

# Permissions #################################################################
#
# If this setting is set, MPD will require password authorization. The password
# can setting can be specified multiple times for different password profiles.
#
#password                        "password@read,add,control,admin"
#
# This setting specifies the permissions a user has who has not yet logged in.
#
#default_permissions             "read,add,control,admin"
#
###############################################################################

# Audio Output ################################################################
#
# MPD supports various audio output types, as well as playing through multiple
# audio outputs at the same time, through multiple audio_output settings
# blocks. Setting this block is optional, though the server will only attempt
# autodetection for one sound card.
#
# See <http://mpd.wikia.com/wiki/Configuration#Audio_Outputs> for examples of
# other audio outputs.
#
# An example of an ALSA output:
#
#audio_output {
#    type            "alsa"
#    name            "My ALSA Device"
#    device            "hw:0,0"    # optional
#    format            "44100:16:2"    # optional
#}
#
# An example of an OSS output:
#
#audio_output {
#    type            "oss"
#    name            "My OSS Device"
#    device            "/dev/dsp"    # optional
#    format            "44100:16:2"    # optional
#}
#
# An example of a shout output (for streaming to Icecast):
#
#audio_output {
#    type            "shout"
#    encoding        "ogg"            # optional
#    name            "My Shout Stream"
#    host            "localhost"
#    port            "8000"
#    mount            "/mpd.ogg"
#    password        "hackme"
#    quality            "5.0"
#    bitrate            "128"
#    format            "44100:16:1"
#    protocol        "icecast2"        # optional
#    user            "source"        # optional
#    description        "My Stream Description"    # optional
#    genre            "jazz"            # optional
#    public            "no"            # optional
#    timeout            "2"            # optional
#}
#
# An example of a pulseaudio output (streaming to a remote pulseaudio server)
#
#audio_output {
#    type            "pulse"
#    name            "My Pulse Output"
#    server            "remote_server"
#    sink            "remote_server_sink"
#}
#
## An example of a null output (for no audio output):
#
#audio_output {
#    type            "null"
#    name            "My Null Output"
#}
#
# This setting will change all decoded audio to be converted to the specified
# format before being passed to the audio outputs. By default, this setting is
# disabled.
#
#audio_output_format        "44100:16:2"
#
# If MPD has been compiled with libsamplerate support, this setting specifies
# the sample rate converter to use.  Possible values can be found in the
# mpd.conf man page or the libsamplerate documentation. By default, this is
# setting is disabled.
#
#samplerate_converter        "Fastest Sinc Interpolator"
#
###############################################################################

# Volume control mixer ########################################################
#
# MPD has limited volume controls, to use them pick one below. If one is not
# specified it may be autodetected at startup, depending on the dependencies
# which were compiled into the server.
#
# An example for controlling an ALSA mixer:
#
#mixer_type            "alsa"
#mixer_device            "default"
#mixer_control            "PCM"
#
# An example for controlling an OSS mixer:
#
#mixer_type            "oss"
#mixer_device            "/dev/mixer"
#mixer_control            "PCM"
#
# This example is a general volume control mixer, it is used to adjust the
# volume of the audio sent to the audio output, and will work with all outputs.
#
#mixer_type            "software"
#
###############################################################################

# Normalization automatic volume adjustments ##################################
#
# This setting specifies the type of ReplayGain to use. This setting can have
# the argument "album" or "track". See <http://www.replaygain.org> for more
# details. By default this setting is disabled.
#
#replaygain            "album"
#
# This setting sets the pre-amp used for files that have ReplayGain tags. By
# default this setting is disabled.
#
#replaygain_preamp        "0"
#
# This setting enables on-the-fly normalization volume adjustment. This will
# result in the volume of all playing audio to be adjusted so the output has
# equal "loudness".
#
#volume_normalization        "no"
#
###############################################################################

# MPD Internal Buffering ######################################################
#
# This setting adjusts the size of internal decoded audio buffering. Changing
# this may have undesired effects. Don't change this if you don't know what you
# are doing.
#
#audio_buffer_size        "2048"
#
# This setting controls the percentage of the buffer which is filled before
# beginning to play. Increasing this reduces the chance of audio file skipping,
# at the cost of increased time prior to audio playback.
#
#buffer_before_play        "10%"
#
###############################################################################

# HTTP Streaming Proxy ########################################################
#
# This setting specifies the HTTP proxy to use for playing HTTP streams. By
# default, these settings will be disabled.
#
#http_proxy_host        "proxy.isp.com"
#http_proxy_port        "8080"
#http_proxy_user        "user"
#http_proxy_password        "password"
#
###############################################################################

# Resource Limitations ########################################################
#
# These settings are various limitations to prevent MPD from using too many
# resources. Generally, these settings should be minimized to prevent security
# risks, depending on the operating resources.
#
#connection_timeout        "60"
#max_connections        "10"
#max_playlist_length        "16384"
#max_command_list_size        "2048"
#max_output_buffer_size        "8192"
#
###############################################################################

# Character Encoding ##########################################################
#
# If file or directory names do not display correctly for your locale then you
# may need to modify this setting. After modification of this setting mpd
# --create-db must be run to change the database.
#
#filesystem_charset        "UTF-8"
#
# This setting controls the encoding that ID3v1 tags should be converted from.
#
#id3v1_encoding            "ISO-8859-1"
#
###############################################################################
mixer_type "software"

zrobiłem coś takiego:
odhaszowałem i zamieniłem ten wpis:
audio_output {
    type            "oss"
    name            "My OSS Device"
    device            "/dev/sound/dsp"    # optional          <-tutaj zamiana /dev/dsp na /dev/sound/dsp
    format            "44100:16:2"    # optional
}

teraz nie mam żadnych komunikatów o błędzie przy starcie mpd, ale dalej słyszę tylko ciągły pisk z karty -sama karta usb, tzn. jej dioda mruga tak jakby coś odtwarzała, ale to tylko pisk.

pozdr
Radek

zachszowałem i odchaszowałem format ale to nic nie zmianie, przestawiałem opcje mixera:
device_mixer /dev/sound/mixer i na /dev/sound/mixer1
, to również nie zmieniło nic. Doinstalowałem kmod-alsa też nic nie dało.
Przy obecnej konfiguracji (plik niżej) nie mam żadnych błędów przy uruchamiania (w .mpd/error log też czysto) a jedynie co słyszę to tylko pisk (zmieniałem na różne plik mp3 i też nie działa) który wyłącza się wraz z końcem czasu odtwarzania (dla utworu niżej p 2 min i 43 sek).
To co znalazłem w necie: http://openlinksys.info/forum/viewthrea … ad_id=9806 gdzie inny kolega miał podobny problem i dopiero jak zainstalował wersję z jądrem 2.6 to mu zadziałało czy tylko takie rozwiązanie pozostaje?

moje pliki:

root@OpenWrt:~# /etc/init.d/mpd start
sh: #: unknown operand
added /plik2.mp3
unable to bind port 6600: Address already in use <- nie wyłączyłem wcześniej wystartowanego demona mpd
maybe MPD is still running?
Aborted
adding: plik2.mp3
plik2.mp3
[playing] #1/1   0:00/2:43 (0%)
volume: 39%   repeat: on    random: off
plik2.mp3
[playing] #1/1   0:00/2:43 (0%)
volume: 39%   repeat: off   random: off

root@OpenWrt:~# mpc clear
volume: 39%   repeat: off   random: off
root@OpenWrt:~# mpc add plik2.mp3
adding: plik2.mp3
root@OpenWrt:~# mpc play
plik2.mp3
[playing] #1/1   0:00/2:43 (0%)
volume: 39%   repeat: off   random: off

root@OpenWrt:~# dmesg
CPU revision is: 00029006
Primary instruction cache 16kB, physically tagged, 2-way, linesize 16 bytes.
Primary data cache 16kB, 2-way, linesize 16 bytes.
Linux version 2.4.35.4 (user@debian) (gcc version 3.4.6 (OpenWrt-2.0)) #6 Sun Jan 10 22:38:25 CET 2010
Setting the PFC to its default value
Determined physical RAM map:
memory: 02000000 @ 00000000 (usable)
On node 0 totalpages: 8192
zone(0): 8192 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/mtdblock2 rootfstype=squashfs,jffs2 init=/etc/preinit noinitrd console=ttyS0,115200
CPU: BCM4704 rev 9 at 264 MHz
Using 132.000 MHz high precision timer.
Calibrating delay loop... 263.78 BogoMIPS
Memory: 30460k/32768k available (1431k kernel code, 2308k reserved, 100k data, 84k init, 0k highmem)
Dentry cache hash table entries: 4096 (order: 3, 32768 bytes)
Inode cache hash table entries: 2048 (order: 2, 16384 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
Checking for 'wait' instruction...  unavailable.
POSIX conformance testing by UNIFIX
PCI: Initializing host
PCI: Fixing up bus 0
PCI: Fixing up bridge
PCI: Setting latency timer of device 01:00.0 to 64
PCI: Fixing up bus 1
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Registering mini_fo version $Id$
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB.
squashfs: version 3.0 (2006/03/15) Phillip Lougher
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0xb8000300 (irq = 3) is a 16550A
ttyS01 at 0xb8000400 (irq = 3) is a 16550A
b44.c:v0.93 (Mar, 2004)
PCI: Setting latency timer of device 00:01.0 to 64
eth0: Broadcom 47xx 10/100BaseT Ethernet 00:1b:fc:c0:72:8e
PCI: Setting latency timer of device 00:02.0 to 64
eth1: Broadcom 47xx 10/100BaseT Ethernet 40:10:18:00:00:2d
Physically mapped flash: Found an alias at 0x800000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1000000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1800000 for the chip at 0x0
Amd/Fujitsu Extended Query Table v1.3 at 0x0040
number of CFI chips: 1
cfi_cmdset_0002: Disabling fast programming due to code brokenness.
Flash device: 0x800000 at 0x1c000000
bootloader size: 262144
Physically mapped flash: Filesystem type: squashfs, size=0x17b8d4
Creating 5 MTD partitions on "Physically mapped flash":
0x00000000-0x00040000 : "cfe"
0x00040000-0x007f0000 : "linux"
0x000bb800-0x00240000 : "rootfs"
mtd: partition "rootfs" doesn't start on an erase block boundary -- force read-only
0x007f0000-0x00800000 : "nvram"
0x00240000-0x007f0000 : "rootfs_data"
Initializing Cryptographic API
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 4096)
Linux IP multicast router 0.06 plus PIM-SM
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Ethernet Bridge 008 for NET4.0
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (squashfs filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 84k freed
Algorithmics/MIPS FPU Emulator v1.5
diag: Detected 'ASUS WL-500g Premium'
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
roboswitch: Probing device eth0: found!
mini_fo: using base directory: /
mini_fo: using storage directory: /jffs
jffs2.bbc: SIZE compression mode activated.
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
eth0.1: add 01:00:5e:00:00:01 mcast address to master interface
SCSI subsystem driver Revision: 1.00
eth0.0: add 01:00:5e:00:00:01 mcast address to master interface
eth0.0: dev_set_promiscuity(master, 1)
device eth0 entered promiscuous mode
device eth0.0 entered promiscuous mode
br-lan: port 1(eth0.0) entering learning state
br-lan: port 1(eth0.0) entering forwarding state
br-lan: topology change detected, propagating
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
PCI: Setting latency timer of device 01:02.0 to 64
PCI: Enabling device 01:02.0 (0004 -> 0006)
PCI/DMA
wl0: wlc_attach: chiprev 2 coreunit 0 corerev 9 cccap 0x640009 maccap 0x0 band 2.4G, phy_type 2 phy_rev 7 ana_rev 3
wl0: Broadcom BCM4318 802.11 Wireless Controller 4.150.10.5
CSLIP: code copyright 1989 Regents of the University of California
PPP generic driver version 2.4.2
Journalled Block Device driver loaded
ip_tables: (C) 2000-2002 Netfilter core team
ip_conntrack version 2.1 (5953 buckets, 5953 max) - 336 bytes per conntrack
usb-uhci.c: $Revision: 1.275 $ time 22:36:39 Jan 10 2010
usb-uhci.c: High bandwidth mode enabled
PCI: Enabling device 01:03.0 (0000 -> 0001)
UHCI: Enabling VIA 6212 workarounds
usb-uhci.c: USB UHCI at I/O 0x100, IRQ 2
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Enabling device 01:03.1 (0000 -> 0001)
UHCI: Enabling VIA 6212 workarounds
usb-uhci.c: USB UHCI at I/O 0x120, IRQ 2
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 2
hub.c: USB hub found
hub.c: 2 ports detected
usb-uhci.c: v1.275:USB Universal Host Controller Interface driver
PCI: Enabling device 01:03.2 (0000 -> 0002)
ehci_hcd 01:03.2: PCI device 1106:3104
ehci_hcd 01:03.2: irq 2, pci mem c023d000
usb.c: new USB bus registered, assigned bus number 3
EHCI: Enabling VIA 6212 workarounds
ehci_hcd 01:03.2: USB 2.0 enabled, EHCI 1.00, driver 2003-Dec-29/2.4
hub.c: USB hub found
hub.c: 4 ports detected
usb.c: registered new driver audio
audio.c: v1.0.0:USB Audio Class driver
usb.c: registered new driver usblp
printer.c: v0.13: USB Printer Device Class driver
hub.c: connect-debounce failed, port 1 disabled
Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage
USB Mass Storage support registered.
usb.c: registered new driver snd-usb-audio
hub.c: new USB device 01:03.2-2, assigned address 2
scsi0 : SCSI emulation for USB Mass Storage devices
  Vendor: MAXTOR S  Model:         9RAB5YHF  Rev: D
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB)
Partition check:
/dev/scsi/host0/bus0/target0/lun0: p1 p2
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 2
hub.c: new USB device 01:03.0-1, assigned address 2
usbaudio: device 2 audiocontrol interface 0 has 1 input and 1 output AudioStreaming interfaces
usbaudio: device 2 interface 2 altsetting 1 channels 1 framesize 2 configured
usbaudio: valid input sample rate 24000
usbaudio: device 2 interface 2 altsetting 1: format 0x00000010 sratelo 24000 sratehi 24000 attributes 0x00
usbaudio: device 2 interface 1 altsetting 0 does not have an endpoint
usbaudio: device 2 interface 1 altsetting 1 channels 2 framesize 2 configured
usbaudio: valid output sample rate 48000
usbaudio: device 2 interface 1 altsetting 1: format 0x01000010 sratelo 48000 sratehi 48000 attributes 0x00
usbaudio: registered dsp 14,3
usbaudio: constructing mixer for Terminal 3 type 0x0301
usbaudio: registered mixer 14,0
usbaudio: constructing mixer for Terminal 6 type 0x0101
usbaudio: registered mixer 14,16
usb_audio_parsecontrol: usb_audio_state at 81af98e0
kjournald starting.  Commit interval 5 seconds
EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
EXT3 FS 2.4-0.9.19, 19 August 2002 on sd(8,1), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
Adding Swap: 2040244k swap-space (priority -1)
device wl0 entered promiscuous mode
wl0: attempt to add interface with same source address.
br-lan: port 2(wl0) entering learning state
br-lan: port 2(wl0) entering forwarding state
br-lan: topology change detected, propagating

lsmod
root@OpenWrt:~# lsmod
Module                  Size  Used by    Tainted: P
snd-pcm-oss            47924   0 (unused)
snd-mixer-oss          15528   0 [snd-pcm-oss]
snd-usb-audio          58488   0 (unused)
snd-hwdep               6328   0 [snd-usb-audio]
snd-usb-lib            12676   0 [snd-usb-audio]
snd-rawmidi            18584   0 [snd-usb-lib]
snd-pcm                63924   0 [snd-pcm-oss snd-usb-audio]
snd-timer              19752   0 [snd-pcm]
snd                    50552   0 [snd-pcm-oss snd-mixer-oss snd-usb-audio snd-hwdep snd-usb-lib snd-rawmidi snd-pcm snd-timer]
snd-page-alloc          7184   0 [snd-mixer-oss snd-usb-audio snd-hwdep snd-rawmidi snd-pcm snd-timer snd]
usb-storage            69648   2
printer                 9852   0 (unused)
audio                  47112   1
wlcompat                9504   0 (unused)
ehci-hcd               20556   0 (unused)
usb-uhci               27164   0 (unused)
ip_conntrack_tftp       1628   0 (unused)
ip_nat_irc              2296   0 (unused)
ip_conntrack_irc        3028   1
ip_nat_ftp              2920   0 (unused)
ip_conntrack_ftp        4172   1
ipt_MASQUERADE          1316   2
iptable_nat            20856   3 [ip_nat_irc ip_nat_ftp ipt_MASQUERADE]
ipt_state                408   6
ip_conntrack           22304   3 [ip_conntrack_tftp ip_nat_irc ip_conntrack_irc ip_nat_ftp ip_conntrack_ftp ipt_MASQUERADE iptable_nat ipt_state]
sd_mod                 12500   4
ipt_REJECT              3932   2
ipt_TCPMSS              2316   2
ipt_LOG                 3804   0 (unused)
ipt_multiport            748   0 (unused)
ipt_mac                  556   0 (unused)
ipt_limit                892   1
iptable_mangle          2156   0 (unused)
iptable_filter          1676   1
ip_tables              16960  13 [ipt_MASQUERADE iptable_nat ipt_state ipt_REJECT ipt_TCPMSS ipt_LOG ipt_multiport ipt_mac ipt_limit iptable_mangle iptable_filter]
ext2                   40304   0 (unused)
ext3                   71388   1
jbd                    51152   1 [ext3]
soundcore               4048   3 [snd audio]
ppp_async               8044   0 (unused)
ppp_generic            22380   0 [ppp_async]
slhc                    6064   0 [ppp_generic]
vfat                   11340   0 (unused)
fat                    34448   0 [vfat]
wl                    666560   0 (unused)
nls_iso8859-1           2672   0 (unused)
nls_cp437               4192   0 (unused)
usbcore                71296   1 [snd-usb-audio snd-usb-lib usb-storage printer audio ehci-hcd usb-uhci]
scsi_mod               66048   2 [usb-storage sd_mod]
switch-robo             5180   0 (unused)
switch-core             5104   0 [switch-robo]
diag                   50448   0 (unused)

root@OpenWrt:~# vi /etc/mpd.conf
# An example configuration file for MPD
# See the mpd.conf man page for a more detailed description of each parameter.

# Required files and directories ##############################################
#
# This setting controls the top directory which MPD will search to discover the
# available audio files and add them to the daemon's online database.
#
music_directory            "/home/share/torrenty/muza"
#
# This setting sets the MPD internal playlist directory. The purpose of this
# directory is storage for playlists created by MPD. The server will use
# playlist files not created by the server but only if they are in the MPD
# format.
#
playlist_directory        "/home/share/torrenty/muza/.mpd/playlists"
#
# This setting sets the location of the MPD database. This file is used to
# load the database at server start up and store the database while the
# server is not up.
#
db_file                "/home/share/torrenty/muza/.mpd/database"
#
# These settings are the locations for the daemon log files for the daemon.
# These logs are great for troubleshooting, depending on your log_level
# settings.
#
log_file            "/home/share/torrenty/muza/.mpd/log"
error_file            "/home/share/torrenty/muza/.mpd/error-log"
###############################################################################

# Optional files ##############################################################
#
# This setting sets the location of the file which stores the process ID
# for use of mpd --kill and some init scripts. This setting is disabled by
# default.
#
pid_file            "/home/share/torrenty/muza/.mpd/pid"
#
# This setting sets the location of the file which contains information about
# most variables to get MPD back into the same general shape it was in before
# it was brought down. This setting is disabled by default.
#
state_file            "/home/share/torrenty/muza/.mpd/state"
#
###############################################################################

# General music daemon options ################################################
#
# This setting specifies the user that MPD will run as, if set. MPD should
# never run as root and you may use this setting to make MPD change its user
# id after initialization. Do not use this setting if you start MPD as an
# unprivileged user. This setting is disabled by default, and the server will
# run as root.
#
#user                "nobody"
#
# This setting sets the address for the daemon to listen on. Careful attention
# should be paid if this is assigned to anything other then the default, any.
# This setting can deny access to control of the daemon.
#
# For network
#bind_to_address        "any"
#
# And for Unix Socket
#bind_to_address        "~/.mpd/socket"
#
# This setting is the port that is desired for the daemon to get assigned to.
#
#port                "6600"
#
# This setting controls the type of information which is logged. Available
# setting arguments are "default", "secure" or "verbose". The "verbose" setting
# argument is recommended for troubleshooting, though can quickly stretch
# available resources on limited hardware storage.
#
#log_level            "default"
#
# If you have a problem with your MP3s ending abruptly it is recommended that
# you set this argument to "no" to attempt to fix the problem. If this solves
# the problem, it is highly recommended to fix the MP3 files with vbrfix
# (available from <http://www.willwap.co.uk/Programs/vbrfix.php>), at which
# point gapless MP3 playback can be enabled.
#
#gapless_mp3_playback            "yes"
#
# This setting enables MPD to create playlists in a format usable by other
# music players.
#
#save_absolute_paths_in_playlists    "no"
#
# This setting defines a list of tag types that will be extracted during the
# audio file discovery process. Optionally, 'comment' can be added to this
# list.
#
#metadata_to_use    "artist,album,title,track,name,genre,date,composer,performer,disc"
#
###############################################################################

# Symbolic link behavior ######################################################
#
# If this setting is set to "yes", MPD will discover audio files by following
# symbolic links outside of the configured music_directory.
#
#follow_outside_symlinks    "yes"
#
# If this setting is set to "yes, MPD will discover audio files by following
# symbolic links inside of the configured music_directory.
#
#follow_inside_symlinks        "yes"
#
###############################################################################

# Zeroconf / Avahi Service Discovery ##########################################
#
# If this setting is set to "yes", service information will be published with
# Zeroconf / Avahi.
#
#zeroconf_enabled        "yes"
#
# The argument to this setting will be the Zeroconf / Avahi unique name for
# this MPD server on the network.
#
#zeroconf_name            "Music Player"
#
###############################################################################

# Permissions #################################################################
#
# If this setting is set, MPD will require password authorization. The password
# can setting can be specified multiple times for different password profiles.
#
#password                        "password@read,add,control,admin"
#
# This setting specifies the permissions a user has who has not yet logged in.
#
#default_permissions             "read,add,control,admin"
#
###############################################################################

# Audio Output ################################################################
#
# MPD supports various audio output types, as well as playing through multiple
# audio outputs at the same time, through multiple audio_output settings
# blocks. Setting this block is optional, though the server will only attempt
# autodetection for one sound card.
#
# See <http://mpd.wikia.com/wiki/Configuration#Audio_Outputs> for examples of
# other audio outputs.
#
# An example of an ALSA output:
#
#audio_output {
#    type            "alsa"
#    name            "My ALSA Device"
#    device            "hw:14,3"    # optional
#    format            "44100:16:2"    # optional
#}
#
# An example of an OSS output:
#
audio_output {
    type            "oss"
    name            "My OSS Device"
    device            "/dev/sound/dsp"    # optional
    format            "44100:16:2"    # optional
}
#
# An example of a shout output (for streaming to Icecast):
#
#audio_output {
#    type            "shout"
#    encoding        "ogg"            # optional
#    name            "My Shout Stream"
#    host            "localhost"
#    port            "8000"
#    mount            "/mpd.ogg"
#    password        "hackme"
#    quality            "5.0"
#    bitrate            "128"
#    format            "44100:16:1"
#    protocol        "icecast2"        # optional
#    user            "source"        # optional
#    description        "My Stream Description"    # optional
#    genre            "jazz"            # optional
#    public            "no"            # optional
#    timeout            "2"            # optional
#}
#
# An example of a pulseaudio output (streaming to a remote pulseaudio server)
#
#audio_output {
#    type            "pulse"
#    name            "My Pulse Output"
#    server            "remote_server"
#    sink            "remote_server_sink"
#}
#
## An example of a null output (for no audio output):
#
#audio_output {
#    type            "null"
#    name            "My Null Output"
#}
#
# This setting will change all decoded audio to be converted to the specified
# format before being passed to the audio outputs. By default, this setting is
# disabled.
#
#audio_output_format        "44100:16:2"
#
# If MPD has been compiled with libsamplerate support, this setting specifies
# the sample rate converter to use.  Possible values can be found in the
# mpd.conf man page or the libsamplerate documentation. By default, this is
# setting is disabled.
#
#samplerate_converter        "Fastest Sinc Interpolator"
#
###############################################################################

# Volume control mixer ########################################################
#
# MPD has limited volume controls, to use them pick one below. If one is not
# specified it may be autodetected at startup, depending on the dependencies
# which were compiled into the server.
#
# An example for controlling an ALSA mixer:
#
#mixer_type            "alsa"
#mixer_device            "default"
#mixer_control            "PCM"
#
# An example for controlling an OSS mixer:
#
mixer_type            "oss"
mixer_device            "/dev/sound/mixer"
mixer_control            "PCM"
#
# This example is a general volume control mixer, it is used to adjust the
# volume of the audio sent to the audio output, and will work with all outputs.
#
#mixer_type            "software"
#
###############################################################################

# Normalization automatic volume adjustments ##################################
#
# This setting specifies the type of ReplayGain to use. This setting can have
# the argument "album" or "track". See <http://www.replaygain.org> for more
# details. By default this setting is disabled.
#
#replaygain            "album"
#
# This setting sets the pre-amp used for files that have ReplayGain tags. By
# default this setting is disabled.
#
#replaygain_preamp        "0"
#
# This setting enables on-the-fly normalization volume adjustment. This will
# result in the volume of all playing audio to be adjusted so the output has
# equal "loudness".
#
#volume_normalization        "no"
#
###############################################################################

# MPD Internal Buffering ######################################################
#
# This setting adjusts the size of internal decoded audio buffering. Changing
# this may have undesired effects. Don't change this if you don't know what you
# are doing.
#
#audio_buffer_size        "2048"
#
# This setting controls the percentage of the buffer which is filled before
# beginning to play. Increasing this reduces the chance of audio file skipping,
# at the cost of increased time prior to audio playback.
#
#buffer_before_play        "10%"
#
###############################################################################

# HTTP Streaming Proxy ########################################################
#
# This setting specifies the HTTP proxy to use for playing HTTP streams. By
# default, these settings will be disabled.
#
#http_proxy_host        "proxy.isp.com"
#http_proxy_port        "8080"
#http_proxy_user        "user"
#http_proxy_password        "password"
#
###############################################################################

# Resource Limitations ########################################################
#
# These settings are various limitations to prevent MPD from using too many
# resources. Generally, these settings should be minimized to prevent security
# risks, depending on the operating resources.
#
#connection_timeout        "60"
#max_connections        "10"
#max_playlist_length        "16384"
#max_command_list_size        "2048"
#max_output_buffer_size        "8192"
#
###############################################################################

# Character Encoding ##########################################################
#
# If file or directory names do not display correctly for your locale then you
# may need to modify this setting. After modification of this setting mpd
# --create-db must be run to change the database.
#
#filesystem_charset        "UTF-8"
#
# This setting controls the encoding that ID3v1 tags should be converted from.
#
#id3v1_encoding            "ISO-8859-1"
#
###############################################################################

pakiety
root@OpenWrt:~# opkg list_installed|grep kmod*
kmod-alsa - 2.4.35.4+1.0.14rc1-brcm-2.4-1 -
kmod-brcm-wl - 2.4.35.4+4.150.10.5.3-brcm-2.4-3.2 -
kmod-diag - 2.4.35.4-brcm-2.4-4.2 -
kmod-fs-ext2 - 2.4.35.4-brcm-2.4-1 -
kmod-fs-ext3 - 2.4.35.4-brcm-2.4-1 -
kmod-fs-vfat - 2.4.35.4-brcm-2.4-1 -
kmod-ipt-conntrack - 2.4.35.4-brcm-2.4-1 -
kmod-ipt-core - 2.4.35.4-brcm-2.4-1 -
kmod-ipt-nat - 2.4.35.4-brcm-2.4-1 -
kmod-ipt-nathelper - 2.4.35.4-brcm-2.4-1 -
kmod-nls-cp437 - 2.4.35.4-brcm-2.4-1 -
kmod-nls-iso8859-1 - 2.4.35.4-brcm-2.4-1 -
kmod-ppp - 2.4.35.4-brcm-2.4-1 -
kmod-pppoe - 2.4.35.4-brcm-2.4-1 -
kmod-scsi-core - 2.4.35.4-brcm-2.4-1 -
kmod-sound-core - 2.4.35.4-brcm-2.4-1 -
kmod-switch - 2.4.35.4-brcm-2.4-1.1 -
kmod-usb-audio - 2.4.35.4-brcm-2.4-1 -
kmod-usb-core - 2.4.35.4-brcm-2.4-1 -
kmod-usb-printer - 2.4.35.4-brcm-2.4-1 -
kmod-usb-storage - 2.4.35.4-brcm-2.4-1 -
kmod-usb-uhci-iv - 2.4.35.4-brcm-2.4-1 -
kmod-usb2 - 2.4.35.4-brcm-2.4-1 -
kmod-wlcompat - 2.4.35.4+4.150.10.5.3-brcm-2.4-3.2 -
i alsa
alsa-lib - 1.0.19-1 -

Nie, nic nie robiłem ale przymierzam się do zainstalowania firmware'u z jądrem 2.6
pozdr
Radek

mpd się buntuje, coś zmienili widocznie teraz. Zrób grupę audio

echo "audio:x:1002:" >> /etc/group
chmod 777 /dev/snd/*

i uruchom mpd jeszcze raz.

No widzisz...

Przenieś ten plik do /tmp i dodaj z tmp

To tak jak być miał błąd w konfiguracji mpd.

zainstaluj strace i uruchom

strace -o /tmp/a.txt -f mpc add /tmp/Children.mp3 

A potem w a.txt poszukaj czego biedaczek szuka.

Wygląda na to że mpd nie działa poprawnie. Podczas uruchamiania nie wykazuje błędów?

A katalogi masz właściwe w konfigu ustawione?

Czemu tak? chown -R /audio