[alsa-devel] aplay appication failed to open the alsa device

[Tharmarajan G]

	I tried to send the mp3 file directly to the device by using the cat
command. But it failed to play the mp3 file


[root at SIRIUS /tmp]#cat /usr/local/Songs/AjRaj-Anthimanthirai-Theme4.mp3
>/dev/snd/pcmC0D0p
playback_open
cat: Write Error: File descriptor in bad state
hw_free
snd_card_pxa_tsc2301_playback_close
[root at SIRIUS /tmp]#



On Wed, 2007-10-24 at 10:11 +0530, Tharmarajan G wrote:

> Hi,
> 	I am working on a Development Board which has the PXA270 processor and
> TSC2301 Audio Codec Chip. 
> 
> 	The TSC2301 Chip is interfaced with the processor by SPI interface for
> reading/writing the TSC2301's registers. 
> 
> 	The TSC2301 Chip is interfaced with the processor by I2S interface for
> sending/receiving Audio Data to/from the TSC2301 Audio Codec Chip.
> 
> 	I have downloaded the pxa-uda1380.c alsa driver source for uda1380
> audio codec chip and modified it for tsc2301 . 
> 
> 	I am using the kernel version 2.6.22 and cross-compiler version
> arm-linux-gcc 3.4.1. 
> 
> 	I have built the kernel image with ALSA audio support and the
> applications aplay and arecord for playing and recording audio data
> using ALSA api.
> 
> 	I have got the alsa related entries in the /proc filesystem . But when
> playing the aplay, it failed to open the device.
> 
> [root at SIRIUS /flash2]#./aplay /usr/local/Songs/AjRaj-Anthimanthirai-Theme4.mp3
> ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM default
> aplay: main:545: audio open error: No such file or directory
> [root at SIRIUS /flash2]#
> 
> /aplay
> -D /dev/snd/pcmC0D0p /usr/local/Songs/AjRaj-Anthimanthirai-Theme4.mp3
> ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown
> PCM /dev/snd/pcmC0D0p
> aplay: main:545: audio open error: No such file or directory
> 
> 
> What could be the issue ? Am I missing anyting in the driver for alsa ? 
> 
> 
> Regards,
> Tharmarajan G
> 	
> 
> 
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