
10 Dec
2012
10 Dec
'12
9:24 a.m.
l9jj@163.com wrote:
does the variable buffer_size equal to DMA size?
Yes.
(2)how the pos>buffer_size will happen in the interface snd_pcm_update_hw_ptr0()?
It happens when your driver has a bug. The .pointer callback always must return value that is inside the DMA buffer.
Regards, Clemens