Commit 764fa6e6 authored by Geoffrey D. Bennett's avatar Geoffrey D. Bennett Committed by Takashi Iwai
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ALSA: usb-audio: scarlett2: Fix device hang with ehci-pci 



Use usb_rcvctrlpipe() not usb_sndctrlpipe() for USB control input in
the Scarlett Gen 2 mixer driver. This fixes the device hang during
initialisation when used with the ehci-pci host driver.

Fixes: 9e4d5c1b ("ALSA: usb-audio: Scarlett Gen 2 mixer interface")
Signed-off-by: default avatarGeoffrey D. Bennett <g@b4.vu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/66a3d05dac325d5b53e4930578e143cef1f50dbe.1621584566.git.g@b4.vu


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 51cb8e20

sound/usb/mixer_scarlett_gen2.c

+1 −1
Original line number Diff line number Diff line
@@ -635,7 +635,7 @@ static int scarlett2_usb( 
	/* send a second message to get the response */



	err = snd_usb_ctl_msg(mixer->chip->dev,

			usb_sndctrlpipe(mixer->chip->dev, 0),

			usb_rcvctrlpipe(mixer->chip->dev, 0),

			SCARLETT2_USB_VENDOR_SPECIFIC_CMD_RESP,

			USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,

			0,