At Mon, 30 Jul 2007 15:48:25 +0530, Hemanth Kumar wrote:

Hi All,

           I am new to alsa , I am using the Texas Instrument Davinci

Board (ARM arch) with linux-2.6.10 with alsa lib 1.0.6, ALSA was working fine the sound was good,Then I changed the kernel to 2.6.20 with out changeing the alsa lib no when play sound I get humming sound/distorted sound I have few question,

The ALSA kernel API hasn't been changed much for years. So, I don't know what kind of regression you have regarding the driver.

Do you keep the same alsa-lib binary but change only the kernel?

1 .Does I need to change the alsa lib also

Depends.

2 .Does I need to change/ Select addtional option's in kernel(I have copied the linux-2.6.10/.config file to linux-2.6.20)

Yes, likely. 2.6.10 and 2.6.20 are quite different. The ALSA kconfigs haven't much changed but many other are.

Takashi