Thanks a lot for this pointer. A quick question;
For the .pointer function, it says " This callback is called when the PCM middle layer inquires the current hardware position on the buffer."
Does the word "PCM middle layer" mean that the MMF like Helix / Gstreamer is continuously querying for hardware position on the buffer? Or does the player keep querying?
I also see that this function gets called quiet a number of times. Is there a way to reduce these calls? My guess is that to reduce the number of calls to .pointer, MMF or player needs to be modified. Am I thinking right?
-Harsha
On Fri, May 9, 2008 at 4:26 PM, Takashi Iwai tiwai@suse.de wrote:
At Wed, 7 May 2008 09:10:00 +0530, Harsha priya gupta wrote:
Hi, It would be really helpful if someone can help me understand why do we
need
to implement .pointer and what does it need to do? I am facing an issue
to
write a driver in this .pointer function. Please help
Also if someone can point me to a document where all the playback_ops are defined, it would be really helpful
Did you check the page below?
http://www.alsa-project.org/main/index.php/ALSA_Driver_Documentation
Takashi