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| author | George Spelvin <linux@horizon.com> | 2014-05-11 15:12:09 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-07-26 06:44:23 +0400 |
| commit | 20d7e3ca1be76a13fb4ea22246bb9d0c4c365809 (patch) | |
| tree | 55145fffdb69774a882a38e0a4b1086271107716 /drivers/media/rc/ir-sharp-decoder.c | |
| parent | 7cec72ce00c174fd74d1183599d3d3dcc5dedc26 (diff) | |
| download | linux-20d7e3ca1be76a13fb4ea22246bb9d0c4c365809.tar.xz | |
[media] ati_remote: Check the checksum
An input report is 4 bytes long, but there are only 12 bits
of actual payload. The 4 bytes are:
data[0] = 0x14
data[1] = data[2] + data[3] + 0xd5 (a checksum byte)
data[2] = the raw scancode (plus toggle bit in msbit)
data[3] = channel << 4 (the low 4 bits must be zero)
Ignore reports with a bad checksum.
Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/rc/ir-sharp-decoder.c')
0 files changed, 0 insertions, 0 deletions