23 Aug
2007
23 Aug
'07
7:40 p.m.
At Thu, 23 Aug 2007 12:36:43 -0500, Timur Tabi wrote:
Takashi Iwai wrote:
On a side note, I notice that ALSA has some scatter-gather support. If an application uses S/G, I presume the concept of a DMA buffer size doesn't even apply?
The SG-buffer isn't for applications but for drivers. From the application viewpoint, the buffer looks linear.
Yes, but in SG, the application allocates the DMA buffer, and a list of physical addresses is passed to the driver.
Err, usually, application = user-space application. Do you mean really this?
Takashi