HID: Use hid_parser for pre-scanning the report descriptors

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The Win 8 detection is sufficiently complex to warrant use of the full
parser code, in spite of the inferred memory usage. Therefore, we can use
the existing HID parser in hid-core for hid_scan_report() by re-using the
code from hid_open_report(). hid_parser_global, hid_parser_local and
hid_parser_reserved does not have any side effects. We just need to
reimplement the MAIN_ITEM callback to have a proper parsing without side
effects.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Tested-by: Srinivas Pandruvada<srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

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Benjamin Tissoires 2013-08-22 14:51:07 +02:00 • committed by Jiri Kosina

parent c08d46aa80

commit 3dc8fc083d

1 changed files with 64 additions and 38 deletions

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102

drivers/hid/hid-core.c

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