Thinh Nguyen 7bf0fc5a6b usb: gadget: composite: Report various SSP sublink speeds
If a gadget supports SuperSpeed Plus, then it may operate in different
sublink speeds. For example, if the gadget supports SuperSpeed Plus
gen2x2, then it can support 2 sublink speeds gen1 and gen2. Inform the
host of these speeds in the BOS descriptor.

Use 1 SSID if the gadget supports up to gen2x1, or not specified:
- SSID 0 for symmetric RX/TX sublink speed of 10 Gbps.

Use 1 SSID if the gadget supports up to gen1x2:
- SSID 0 for symmetric RX/TX sublink speed of 5 Gbps.

Use 2 SSIDs if the gadget supports up to gen2x2:
- SSID 0 for symmetric RX/TX sublink speed of 5 Gbps.
- SSID 1 for symmetric RX/TX sublink speed of 10 Gbps.

Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/eb0386fdd5d87a858281e8006a72723d3732240f.1610592135.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-18 18:41:11 +01:00
2021-01-10 14:34:50 -08:00

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.
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