linux-kernel - [PATCH v6 0/8] uvcvideo: Fix handling of power_line

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Date:   Wed, 15 Jun 2022 17:12:51 +0200
From:   Ricardo Ribalda <ribalda@...omium.org>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        tfiga@...omium.org, senozhatsky@...omium.org, yunkec@...gle.com
Cc:     Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v6 0/8] uvcvideo: Fix handling of power_line_frequency

Hello,

This series is a new version of "[PATCH v3 0/7] uvcvideo: Fix handling
of power_line_frequency", with an attempt to generalize the
UVC_QUIRK_LIMITED_POWERLINE quirk that it introduced and turn it into a
control mappings override mechanism.

The goal is still to support the UVC 1.5 power line frequency control
extra option (patch 1/7), and work around an issue with devices that do
not implement support for disabling the power line frequency (patches
2/7 to 7/7).


Changelog v8:
- Add support for per-device control mapping overrides
  Fix invalid memory access
- Support minimum for V4L2_CTRL_TYPE_MENU
  New patch
- Limit power line control for Quanta UVC Webcam
  Fix id


Ricardo Ribalda (8):
  media: uvcvideo: Add missing value for power_line_frequency
  media: uvcvideo: Add support for per-device control mapping overrides
  media: uvcvideo: Support minimum for V4L2_CTRL_TYPE_MENU
  media: uvcvideo: Limit power line control for Quanta UVC Webcam
  media: uvcvideo: Limit power line control for Chicony Easycamera
  media: uvcvideo: Limit power line control for Chicony Easycamera
  media: uvcvideo: Limit power line control for Quanta cameras
  media: uvcvideo: Limit power line control for Acer EasyCamera

 drivers/media/usb/uvc/uvc_ctrl.c   | 87 ++++++++++++++++++++++++-----
 drivers/media/usb/uvc/uvc_driver.c | 89 ++++++++++++++++++++++++++++++
 drivers/media/usb/uvc/uvcvideo.h   |  2 +
 3 files changed, 163 insertions(+), 15 deletions(-)

-- 
2.36.1.476.g0c4daa206d-goog