On 08/21/2013 08:40 AM, Benjamin Tissoires wrote:

Hi guys,

this is the v2 of the rework of the pre-scanning of the hid report descriptors.
This allows us to be able to detect Win 8 multitouch panels.
I tried to take into account all of the previous reviews, and I think the patch
series is in a better shape now.

Alexander, Srinivas, could you please review/test patches 1/3 and 2/3 as they
will both impact hid_sensor_hub detection now. From the report descriptors
Alexander sent, I would say that it will work now, but it's always better to
have different testers :)

Tested sensor hub. It works.

Cheers,
Benjamin

Changes in v2:
- moved "flags" processing in patch 2/3
- do not introduce parser->flags, but use hid->group as a temporary flag placeholder
- hid_scan_report() is less verbose when errors are found in the descriptor
- hid_scan_report() is tolerant to parsing errors
- fixed usage_page handling in hid_scan_collection(), which fixes sensors detection
- amended commit messages
- #define and #undef HID_FLAG_* in hid-core.c instead of hid.h

Benjamin Tissoires (3):
   HID: Use hid_parser for pre-scanning the report descriptors
   HID: detect Win 8 multitouch devices in core
   HID: do not init input reports for Win 8 multitouch devices

  drivers/hid/hid-core.c        | 143 ++++++++++++++++++++++++++++++------------
  drivers/hid/hid-multitouch.c  |  36 +++++++----
  drivers/hid/usbhid/hid-core.c |  11 +++-
  include/linux/hid.h           |   2 +
  4 files changed, 137 insertions(+), 55 deletions(-)