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ae8b163156
Both Behringer UMC 202 HD and 404 HD need explicit quirks to enable the implicit feedback mode and start the playback stream primarily. The former seems fixing the stuttering and the latter is required for a playback-only case. Note that the "clock source 41 is not valid" error message still appears even after this fix, but it should be only once at probe. The reason of the error is still unknown, but this seems to be mostly harmless as it's a one-off error and the driver retires the clock setup and it succeeds afterwards. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215934 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20220624101132.14528-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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.