[alsa-devel] timer + snd_pcm_period_elapsed
Hi,
In my driver, i see that first my copy function is called some 4 times. Then my timer starts (when trigger->start is reached). In my timer function, snd_pcm_period_elapsed is called after the period is considered to be processed by hardware. Everytime the period_elapsed function is called, inturn my pointer function is called but i get the following error. can anyone help as to what i am missing to do?
aplay: pcm_write:1266: write error: Input/output error
Can anyone hint me what i am doing wrong?
On Thu, 5 Jun 2008, Harsha priya gupta wrote:
Hi,
In my driver, i see that first my copy function is called some 4 times. Then my timer starts (when trigger->start is reached). In my timer function, snd_pcm_period_elapsed is called after the period is considered to be processed by hardware. Everytime the period_elapsed function is called, inturn my pointer function is called but i get the following error. can anyone help as to what i am missing to do?
aplay: pcm_write:1266: write error: Input/output error
Can anyone hint me what i am doing wrong?
The pointer function probably returns invalid value.
Jaroslav
----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.
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Jaroslav Kysela