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Error 2 is defined by UVC as: Wrong State: The device is in a state that disallows the specific request. The device will remain in this state until a specific action from the host or the user is completed. This is documented as happening when attempting to set the value of a manual control when the device is in auto mode. While V4L2 allows this, the closest error code defined by VIDIOC_S_CTRL is EACCES: EACCES: Attempt to set a read-only control or to get a write-only control. Or if there is an attempt to set an inactive control and the driver is not capable of caching the new value until the control is active again. Replace EILSEQ with EACCES. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Suggested-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.