1. Patchew
  2. linux
  3. View series

[PATCH v2] media: uvcvideo: Fix power line control for a Chicony camera

Ricardo Ribalda posted 1 patch 2 years, 3 months ago 
drivers/media/usb/uvc/uvc_driver.c | 9 +++++++++
1 file changed, 9 insertions(+)
[PATCH v2] media: uvcvideo: Fix power line control for a Chicony camera
Posted by Ricardo Ribalda 2 years, 3 months ago 
The device does not implement the control properly.

Fixes v4l2-compliance error:

info: checking control 'Power Line Frequency' (0x00980918)
fail: v4l2-test-controls.cpp(552): could not set valid menu item 3

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
This camera, like other Chicony devices, do not implement properly the
Power Line Frequency control.

This time, I do not have direct access to the device, just to the
report, but since other devices from the same family are showing the
same error, it is safe to assume that the same fix will work here.
---
Changes in v2:
- Fix IntefaceProtocol, the camera is uvc1.5
- I managed to write 0 to the control, so the proper quirk is uvc11 not
  limited
- Changes by Laurent:
	- Rename device
	- s/v4l/v4l2
- Link to v1: https://lore.kernel.org/r/20230817-chicony-v1-1-76bde4d6ff6b@chromium.org
---
 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 08fcd2ffa727..4b5ea3501753 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2592,6 +2592,15 @@ static const struct usb_device_id uvc_ids[] = {
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= (kernel_ulong_t)&uvc_ctrl_power_line_limited },
+	/* Chicony Electronics Co., Ltd Integrated Camera */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x04f2,
+	  .idProduct		= 0xb67c,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= UVC_PC_PROTOCOL_15,
+	  .driver_info		= (kernel_ulong_t)&uvc_ctrl_power_line_uvc11 },
 	/* Chicony EasyCamera */
 	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
 				| USB_DEVICE_ID_MATCH_INT_INFO,

---
base-commit: 4853c74bd7ab7fdb83f319bd9ace8a08c031e9b6
change-id: 20230817-chicony-9c35f2046c6f

Best regards,
-- 
Ricardo Ribalda <ribalda@chromium.org>
Re: [PATCH v2] media: uvcvideo: Fix power line control for a Chicony camera
Posted by Laurent Pinchart 2 years, 3 months ago 
Hi Ricardo,

On Tue, Sep 05, 2023 at 03:29:52PM +0000, Ricardo Ribalda wrote:
> The device does not implement the control properly.
> 
> Fixes v4l2-compliance error:
> 
> info: checking control 'Power Line Frequency' (0x00980918)
> fail: v4l2-test-controls.cpp(552): could not set valid menu item 3
> 
> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

This still applies :-)

I've taken the patch in my tree and will push it for v6.7.

> ---
> This camera, like other Chicony devices, do not implement properly the
> Power Line Frequency control.
> 
> This time, I do not have direct access to the device, just to the
> report, but since other devices from the same family are showing the
> same error, it is safe to assume that the same fix will work here.
> ---
> Changes in v2:
> - Fix IntefaceProtocol, the camera is uvc1.5
> - I managed to write 0 to the control, so the proper quirk is uvc11 not
>   limited
> - Changes by Laurent:
> 	- Rename device
> 	- s/v4l/v4l2
> - Link to v1: https://lore.kernel.org/r/20230817-chicony-v1-1-76bde4d6ff6b@chromium.org
> ---
>  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 08fcd2ffa727..4b5ea3501753 100644
> --- a/drivers/media/usb/uvc/uvc_driver.c
> +++ b/drivers/media/usb/uvc/uvc_driver.c
> @@ -2592,6 +2592,15 @@ static const struct usb_device_id uvc_ids[] = {
>  	  .bInterfaceSubClass	= 1,
>  	  .bInterfaceProtocol	= 0,
>  	  .driver_info		= (kernel_ulong_t)&uvc_ctrl_power_line_limited },
> +	/* Chicony Electronics Co., Ltd Integrated Camera */
> +	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
> +				| USB_DEVICE_ID_MATCH_INT_INFO,
> +	  .idVendor		= 0x04f2,
> +	  .idProduct		= 0xb67c,
> +	  .bInterfaceClass	= USB_CLASS_VIDEO,
> +	  .bInterfaceSubClass	= 1,
> +	  .bInterfaceProtocol	= UVC_PC_PROTOCOL_15,
> +	  .driver_info		= (kernel_ulong_t)&uvc_ctrl_power_line_uvc11 },
>  	/* Chicony EasyCamera */
>  	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
>  				| USB_DEVICE_ID_MATCH_INT_INFO,
> 
> ---
> base-commit: 4853c74bd7ab7fdb83f319bd9ace8a08c031e9b6
> change-id: 20230817-chicony-9c35f2046c6f

-- 
Regards,

Laurent Pinchart
Re: [PATCH v2] media: uvcvideo: Fix power line control for a Chicony camera
Posted by Ricardo Ribalda 2 years, 3 months ago 
Hi Laurent

On Wed, 6 Sept 2023 at 15:44, Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Ricardo,
>
> On Tue, Sep 05, 2023 at 03:29:52PM +0000, Ricardo Ribalda wrote:
> > The device does not implement the control properly.
> >
> > Fixes v4l2-compliance error:
> >
> > info: checking control 'Power Line Frequency' (0x00980918)
> > fail: v4l2-test-controls.cpp(552): could not set valid menu item 3
> >
> > Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> > Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>
> This still applies :-)
>
> I've taken the patch in my tree and will push it for v6.7.

Thanks!
>
> > ---
> > This camera, like other Chicony devices, do not implement properly the
> > Power Line Frequency control.
> >
> > This time, I do not have direct access to the device, just to the
> > report, but since other devices from the same family are showing the
> > same error, it is safe to assume that the same fix will work here.
> > ---
> > Changes in v2:
> > - Fix IntefaceProtocol, the camera is uvc1.5
> > - I managed to write 0 to the control, so the proper quirk is uvc11 not
> >   limited
> > - Changes by Laurent:
> >       - Rename device
> >       - s/v4l/v4l2
> > - Link to v1: https://lore.kernel.org/r/20230817-chicony-v1-1-76bde4d6ff6b@chromium.org
> > ---
> >  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 08fcd2ffa727..4b5ea3501753 100644
> > --- a/drivers/media/usb/uvc/uvc_driver.c
> > +++ b/drivers/media/usb/uvc/uvc_driver.c
> > @@ -2592,6 +2592,15 @@ static const struct usb_device_id uvc_ids[] = {
> >         .bInterfaceSubClass   = 1,
> >         .bInterfaceProtocol   = 0,
> >         .driver_info          = (kernel_ulong_t)&uvc_ctrl_power_line_limited },
> > +     /* Chicony Electronics Co., Ltd Integrated Camera */
> > +     { .match_flags          = USB_DEVICE_ID_MATCH_DEVICE
> > +                             | USB_DEVICE_ID_MATCH_INT_INFO,
> > +       .idVendor             = 0x04f2,
> > +       .idProduct            = 0xb67c,
> > +       .bInterfaceClass      = USB_CLASS_VIDEO,
> > +       .bInterfaceSubClass   = 1,
> > +       .bInterfaceProtocol   = UVC_PC_PROTOCOL_15,
> > +       .driver_info          = (kernel_ulong_t)&uvc_ctrl_power_line_uvc11 },
> >       /* Chicony EasyCamera */
> >       { .match_flags          = USB_DEVICE_ID_MATCH_DEVICE
> >                               | USB_DEVICE_ID_MATCH_INT_INFO,
> >
> > ---
> > base-commit: 4853c74bd7ab7fdb83f319bd9ace8a08c031e9b6
> > change-id: 20230817-chicony-9c35f2046c6f
>
> --
> Regards,
>
> Laurent Pinchart



-- 
Ricardo Ribalda

Patchew 2.1-devel-b67e4c2

© 2016 - 2025 Red Hat, Inc.