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69e3769569
This patch add new uvc trace for setup request processing. 1. enable trace echo 4 > /sys/module/usb_f_uvc/parameters/trace 2. dump trace dmesg Test on RV1109 EVB with UVC function when streaming on: [ 426.441316] uvcvideo: setup request a1 81 value 0100 index 0003 001a [ 426.450280] uvcvideo: uvc_send_response: req len 26 [ 426.450444] uvcvideo: event_setup_out 0, data len 26 [ 426.451545] uvcvideo: setup request 21 01 value 0100 index 0003 001a [ 426.460862] uvcvideo: uvc_send_response: req len 26 [ 426.461014] uvcvideo: event_setup_out 1, data len 26 [ 426.461173] uvcvideo: setup request a1 81 value 0100 index 0003 001a [ 426.485791] uvcvideo: uvc_send_response: req len 26 [ 426.486672] uvcvideo: event_setup_out 0, data len 26 [ 426.487145] uvcvideo: setup request a1 83 value 0100 index 0003 001a [ 426.496529] uvcvideo: uvc_send_response: req len 26 [ 426.496655] uvcvideo: event_setup_out 0, data len 26 [ 426.497485] uvcvideo: setup request a1 82 value 0100 index 0003 001a [ 426.506737] uvcvideo: uvc_send_response: req len 26 [ 426.507195] uvcvideo: event_setup_out 0, data len 26 Signed-off-by: William Wu <william.wu@rock-chips.com> Change-Id: If882728e891d033c249e6c466b40d3e2a28bccb6
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.