Send an `URB_CONTROL out` USB frame to the device to configure its samplerate. This should be done before using the device for audio streaming (capture or playback). About the change of `usb_rcvctrlpipe` to `usb_sndctrlpipe`, I reached the author of this line and she agrees about this change. Control frames to set device options should have the `out` direction instead of the `in` direction. See https://github.com/nm2107/Pioneer-DJM-850-driver-reverse-engineering /blob/172fb9a61055960c88c67b7c416fe5bf3609807b /doc/windows-dvs/framerate-setting/README.md Signed-off-by: Nicolas MURE <nicolas.mure2019@xxxxxxxxx> --- sound/usb/quirks.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 9ba4682ebc48..d02dac5fcd40 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1482,7 +1482,7 @@ static int pioneer_djm_set_format_quirk(struct snd_usb_substream *subs, usb_set_interface(subs->dev, 0, 1); // we should derive windex from fmt-sync_ep but it's not set snd_usb_ctl_msg(subs->stream->chip->dev, - usb_rcvctrlpipe(subs->stream->chip->dev, 0), + usb_sndctrlpipe(subs->stream->chip->dev, 0), 0x01, 0x22, 0x0100, windex, &sr, 0x0003); return 0; } @@ -1503,6 +1503,9 @@ void snd_usb_set_format_quirk(struct snd_usb_substream *subs, case USB_ID(0x2b73, 0x0013): /* Pioneer DJM-450 */ pioneer_djm_set_format_quirk(subs, 0x0082); break; + case USB_ID(0x08e4, 0x0163): /* Pioneer DJM-850 */ + pioneer_djm_set_format_quirk(subs, 0x0086); + break; } } -- 2.29.2
