Re: [alsa-devel] regarding setting of fragment size in usbaudio driver

(please don't top-post)

Extremely sorry for that . will take care reagarding this from now on .

If, when read() is called, there is enough data in the buffer, it will return that data and return immediately.  Otherwise, it will wait for the hardware to reach the next period boundary (in OSS: fragment boundary) and try again.

If you want to have shorter waits, use lower fragment sizes.

yes , setting of lower fragment size is my requirement at the moment in OSS application . i tried to use SNDCTL_DSP_SETFRAGMENT ioctl to set lower fragment size . but audio driver uses default fragment size only and not the fragment size desired by application . Is it possible to change fragment size in kernel space ?

Thanx & Regards Amit Nagal