On Fri, 03 Jul 2020 12:17:14 +0200, Pavel Hofman wrote: > > > Dne 02. 07. 20 v 13:28 Pavel Hofman napsal(a): > > > > > > Please is the requirement that EP OUT + EP IN implicit feedback data > > must be in the same interface really necessary? If such a requirement > > was dropped, IMO many devices could be removed from the existing > > set_sync_ep_implicit_fb_quirk and many devices would work out of the > > box, > > I am still thinking about the single-interface requirement. If both > endpoints were to be part of a single interface, could they use > different altsettings for different sample lengths for capture and > playback? E.g. to save USB bandwidth when the capture is used only for > implicit feedback - capturing at 16bits, playback at 32bits. > > In the quirked XMOS devices the common clock for both directions is > defined by the clock feature, the altsettings for each direction (in > separate interfaces) are used for setting sample length. > > Thank you very much for any insight into the issue. IMO not having to > add quirks before a device starts working would be advantageous for all > involved. Could you check for-linus branch of my sound git tree? Just to be sure whether you're hitting the issue that has been already addressed. thanks, Takashi
