AndyNgo, I am almost sure TI's audio driver has some bugs, I met the same problem as you, and I have not tested the new driver patch.
George Gu (Xiangyu Gu) Wintech Digital System Co. Beijing, China Ph: 8610-8278-2828 ext.168 Fax: 8610-8278-0028 http://www.wintechdigtal.com <http://www.wintechdigtal.com/> ---------------------------- _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of AndyNgo Sent: 2007年1月4日 9:31 To: [email protected] Subject: ***SPAM*** Score/Req: 10.50/05.00 - Fwd: Sound driver full duplex problem? Hi, I'm trying to do an audio loopback by reading a sample from /dev/dsp and writing it back to /dev/dsp in a while loop; it will work for about 1 to 2 minutes and then no more audio (stalls on the read). I've seen other posts where the solution is to increase intermediate buffer but it doesn't seem to help. I also tried the loopback by doing this at the prompt: cat /dev/dsp > /dev/dsp ; this works for about 30 seconds to 1 minute before it stalls too (no audio). Is this a buffer overrun or underrun issue? What can I do to resolve this? Does anyone know if an ALSA implementation of the driver is going to be available soon? Thanks, Andy
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