cat sound.wav > /dev/dsp Not Working

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Hello,

 

Want to use OSS emulation through /dev/dsp for playing wav files.  As a simple test to start with I attempt the following:-

 

cat sound.wav > /dev/dsp

 

The output I get is as follows:-

 

ALSA sound/usb/usbaudio.c:1324: setting usb interface 1:1

ALSA sound/usb/usbaudio.c:670: cannot submit urb (err = -45)

 

All I get out of the headphones is a clicking noise. (C-Media usb headphones).

 

The kernel configuration I am using includes:-

CONFIG_SND

CONFIG_SND_SEQUENCER

CONFIG_SND_MIXER_OSS

CONFIG_SND_PCM_OSS

CONFIG_SND_PCM_OSS_PLUGINS

CONFIG_SND_SEQUENCER_OSS

CONFIG_SND_SUPPORT_OLD_API

CONFIG_SND_VERBOSE_PROCFS

CONFIG_SND_VERBOSE_PRINTK

CONFIG_SND_DEBUG

CONFIG_SND_DEBUG_DETECT

CONFIG_SND_PRIME

CONFIG_OSS_OBSOLETE

 

cat /proc/asound/devices gives:-

  0: [ 0]   : control

  1:        : sequencer

 16: [ 0- 0]: digital audio playback

 24: [ 0- 0]: digital audio capture

 33:        : timer

 

Dmesg gives the following information:-

 

MXC PCTL driver initilized. INTQ IRQ# 110 PLOST IRQ# 128

input: C-Media USB Audio Device    as /class/input/input2

input: USB HID v1.00 Device [C-Media USB Audio Device   ] on usb-fsl-ehci.2-1

usbcore: registered new interface driver usbhid

drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver

Advanced Linux Sound Architecture Driver Version 1.0.14 (Thu May 31 09:03:25 2007 UTC).

ALSA sound/usb/usbaudio.c:2753: 2:1:1: add audio endpoint 0x1

ALSA sound/usb/usbaudio.c:2753: 2:2:1: add audio endpoint 0x82

ALSA sound/usb/usbmixer.c:989: [9] FU [PCM Playback Switch] ch = 1, val = 0/1/1

ALSA sound/usb/usbmixer.c:406: cannot set ctl value: req = 0x4, wValue = 0x201, wIndex = 0x900, type = 4, data = "">

ALSA sound/usb/usbmixer.c:989: [9] FU [PCM Playback Volume] ch = 2, val = -7264/-16/48

ALSA sound/usb/usbmixer.c:989: [10] FU [Mic Capture Switch] ch = 1, val = 0/1/1

ALSA sound/usb/usbmixer.c:406: cannot set ctl value: req = 0x4, wValue = 0x200, wIndex = 0xa00, type = 4, data = "">

ALSA sound/usb/usbmixer.c:989: [10] FU [Mic Capture Volume] ch = 1, val = 0/6096/384

ALSA sound/usb/usbmixer.c:989: [10] FU [Auto Gain Control] ch = 1, val = 0/1/1

usbcore: registered new interface driver snd-usb-audio

ALSA device list:

  #0: C-Media USB Audio Device    at usb-fsl-ehci.2-1, full speed

 

 

Does anyone know what the problem might be with this. Would appreciate any assistance.

 

Merry Christmas

 

Geoff Crowther

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