irfan.shaikh at sasken.com
Thu Nov 18 08:22:32 CET 2010
All adresses are also VALID
data : 0x96000 alsaparams->data :0x96000 count :4032 alsaParams->pcm_handle : 0xcfbe0
Please go through belo problem
From: alsa-devel-bounces at alsa-project.org [alsa-devel-bounces at alsa-project.org] On Behalf Of Irfan Shaikh [irfan.shaikh at sasken.com]
Sent: Thursday, November 18, 2010 12:44 PM
To: alsa-devel at alsa-project.org
Subject: [alsa-devel] snd_pcm_mmap_writei
Replacing snd_pcm_writei with snd_pcm__mmap_writei gives SEGFAULT in My code.
Works fine with pcm.c. Can ANyone help me on FINDING OUT WHAT MAY BE CAUSE OF SEGFAULT ?
Is any thing specific required for MMAP Write ????
/$$$ Works FINE $$$/
//while ((pcmreturn = snd_pcm_writei(alsaParams->pcm_handle, data, count)) < 0) // ===>>>>Replaced by below LINE
/$$$ SEG FAULT$$$/
while ((pcmreturn = snd_pcm__mmap_writei(alsaParams->pcm_handle, data, count)) < 0) // REPLACED ABOVE NORMAL WRTIE WITH MMAP WRITE
* My code
Thanks in advance,
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