At Tue, 03 Dec 2013 10:02:44 +0100, Clemens Ladisch wrote: > > Takashi Iwai wrote: > > Raymond Yau wrote: > >> usb-audio seem update when each URB send/receive (in 1ms intervals) > > The default is to use larger intervals. > > > The usb-audio driver behaved in a BATCH way in the very early version, > > but it was improved. > > The delay reporting is more precise, but the DMA position still jumps > for each URB. > > > So we can get rid of the flag from this driver now. > > How well does timer-scheduling work with large URBs? I thought PCM runtime delay should give the accurate sample position, irrespective to URB size? It should suffice for PA to control via timer scheduling. Takashi
