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[v2,2/3,media] uvcvideo: flag variable length control on Oculus Rift CV1 Sensor

Message ID 20170716145305.19934-2-philipp.zabel@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Philipp Zabel July 16, 2017, 2:53 p.m. UTC
The extension unit controls with selectors 11 and 12 are used to make the
eSP770u webcam controller issue SPI transfers to configure the nRF51288
radio or to read the flash storage. Depending on internal state controlled
by selector 11, selector 12 reports different lengths.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
 drivers/media/usb/uvc/uvc_ctrl.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index 43e8851cc381..1d60321a6777 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -1613,6 +1613,9 @@  static void uvc_ctrl_fixup_xu_info(struct uvc_device *dev,
 			UVC_CTRL_FLAG_GET_MIN | UVC_CTRL_FLAG_GET_MAX |
 			UVC_CTRL_FLAG_GET_DEF | UVC_CTRL_FLAG_SET_CUR |
 			UVC_CTRL_FLAG_AUTO_UPDATE },
+		{ { USB_DEVICE(0x2833, 0x0211) }, 4, 12,
+			UVC_CTRL_FLAG_GET_RANGE | UVC_CTRL_FLAG_SET_CUR |
+			UVC_CTRL_FLAG_VARIABLE_LEN },
 	};
 
 	unsigned int i;