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da5e83374f
As long as I investigated, there's some cases about the delay for device between establishing OUTPUT_PLUG and transmitting first isoc packet. For devices which support BeBoB protocol version 1 can transmit the packet within several hundred milliseconds, while for devices which support BeBoB protocol version 3 can transmit the packet within 2 seconds. Devices with protocol version 1: * Edirol FA-66 * Yamaha GO46 * Terratec Phase x24 FW * M-Audio FireWire AudioPhile * M-Audio FireWire Solo * M-Audio FireWire 1814 * M-Audio FireWire 410 * Focusrite Saffire Pro 26 I/O Devices with protocol version 3: * M-Audio Profire Lightbridge * Behringer FCA610 * Phonic Firefly 202 At present ALSA bebob driver postpones starting IR context during 1.5 sec for all of supported devices. The delay is too long for devices with protocol version 1, while it's not enough for devices with protocol version 3. This commit improves the delay for these protocols. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191101131323.17300-3-o-takashi@sakamocchi.jp 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.