Eric Lee / smarc-fsl-linux-kernel

27 Nov, 2020

1 commit

  • f43d3870c   HID: hidraw: Add additional hidraw input/output report ioctls. ... Browse Code »

    Currently the hidraw module can only read and write feature HID reports on
    demand, via dedicated ioctls. Input reports are read from the device through
    the read() interface, while output reports are written through the write
    interface().

    This is insufficient; it is desirable in many situations to be able to read and
    write input and output reports through the control interface to cover
    additional scenarios:

    - Reading an input report by its report ID, to get initial state
    - Writing an input report, to set initial input state in the device
    - Reading an output report by its report ID, to obtain current state
    - Writing an output report by its report ID, out of band

    This patch adds these missing ioctl requests to read and write the remaining
    HID report types. Note that not all HID backends will neccesarily support this
    (e.g. while the USB link layer supports setting Input reports, others may not).

    Also included are documentation and example updates. The current hidraw
    documentation states that feature reports read from the device does *not*
    include the report ID, however this is not the case and the returned report
    will have its report ID prepended by conforming HID devices, as the report data
    sent from the device over the control endpoint must be indentical in format to
    those sent over the regular transport.

    Signed-off-by: Dean Camera
    Signed-off-by: Jiri Kosina

    Dean Camera
     

21 Nov, 2018

1 commit

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

15 Mar, 2015

1 commit

28 Mar, 2013

1 commit

09 Apr, 2011

1 commit

  • cb3e85fe1   HID: hidraw: fix samples miscompilation ... Browse Code »

    On systems where userspace doesn't have new hidraw.h populated to
    /usr/include, the hidraw sample won't compile as it's missing the new
    ioctl defitions.

    Introduce temporary ugly workaround to define the ioctls "manually"
    in such cases, just to avoid miscompilation in allmodconfig cases.

    Reported-by: Stephen Rothwell
    Signed-off-by: Jiri Kosina

    Jiri Kosina
     

22 Mar, 2011

1 commit