From cb5a151a9f52eec624aba353657ca98e360163aa Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 22 Sep 2020 16:51:18 +0800 Subject: [PATCH] USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D commit 068834a2773b6a12805105cfadbb3d4229fc6e0a upstream. The Sound Devices MixPre-D audio card suffers from the same defect as the Sound Devices USBPre2: an endpoint shared between a normal audio interface and a vendor-specific interface, in violation of the USB spec. Since the USB core now treats duplicated endpoints as bugs and ignores them, the audio endpoint isn't available and the card can't be used for audio capture. Along the same lines as commit bdd1b147b802 ("USB: quirks: blacklist duplicate ep on Sound Devices USBPre2"), this patch adds a quirks entry saying to ignore ep5in for interface 1, leaving it available for use with standard audio interface 2. Reported-and-tested-by: Jean-Christophe Barnoud Signed-off-by: Alan Stern CC: Fixes: 3e4f8e21c4f2 ("USB: core: fix check for duplicate endpoints") Link: https://lore.kernel.org/r/20200826194624.GA412633@rowland.harvard.edu Signed-off-by: Greg Kroah-Hartman Signed-off-by: Yang Yingliang --- drivers/usb/core/quirks.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index dec3ae539d20..2f068e525a37 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -370,6 +370,10 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x0926, 0x0202), .driver_info = USB_QUIRK_ENDPOINT_BLACKLIST }, + /* Sound Devices MixPre-D */ + { USB_DEVICE(0x0926, 0x0208), .driver_info = + USB_QUIRK_ENDPOINT_BLACKLIST }, + /* Keytouch QWERTY Panel keyboard */ { USB_DEVICE(0x0926, 0x3333), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, @@ -511,6 +515,7 @@ static const struct usb_device_id usb_amd_resume_quirk_list[] = { */ static const struct usb_device_id usb_endpoint_blacklist[] = { { USB_DEVICE_INTERFACE_NUMBER(0x0926, 0x0202, 1), .driver_info = 0x85 }, + { USB_DEVICE_INTERFACE_NUMBER(0x0926, 0x0208, 1), .driver_info = 0x85 }, { } }; -- GitLab