2022-06-15 15:18:12

by Ricardo Ribalda

[permalink] [raw]
Subject: [PATCH v6 6/8] media: uvcvideo: Limit power line control for Chicony Easycamera

Another Chicony camera device does not implement the power line control
correctly. Add a corresponding control mapping override.

Bus 001 Device 003: ID 04f2:b5eb Chicony Electronics Co., Ltd EasyCamera
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x04f2 Chicony Electronics Co., Ltd
idProduct 0xb5eb
bcdDevice 90.45
iManufacturer 3 Chicony Electronics Co.,Ltd.
iProduct 1 EasyCamera
iSerial 2 0001
bNumConfigurations 1

Signed-off-by: Ricardo Ribalda <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>
---
drivers/media/usb/uvc/uvc_driver.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 5b8a71a9edfb..d21de83021f5 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2820,6 +2820,15 @@ static const struct usb_device_id uvc_ids[] = {
.bInterfaceProtocol = 0,
.driver_info = UVC_INFO_QUIRK(UVC_QUIRK_RESTRICT_FRAME_RATE) },
/* Chicony EasyCamera */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x04f2,
+ .idProduct = 0xb5eb,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = (kernel_ulong_t)&uvc_ctrl_power_line_limited },
+ /* Chicony EasyCamera */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
.idVendor = 0x04f2,
--
2.36.1.476.g0c4daa206d-goog