Apple's remotes use an NEC-like protocol, but without checksumming. See http://en.wikipedia.org/wiki/Apple_Remote for details. Since they always send a specific vendor code, check for that, and bypass the checksum check. Signed-off-by: Jarod Wilson <jarod@xxxxxxxxxx> --- drivers/media/IR/ir-nec-decoder.c | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) diff --git a/drivers/media/IR/ir-nec-decoder.c b/drivers/media/IR/ir-nec-decoder.c index 70993f7..6dcddd2 100644 --- a/drivers/media/IR/ir-nec-decoder.c +++ b/drivers/media/IR/ir-nec-decoder.c @@ -50,6 +50,7 @@ static int ir_nec_decode(struct input_dev *input_dev, struct ir_raw_event ev) struct nec_dec *data = &ir_dev->raw->nec; u32 scancode; u8 address, not_address, command, not_command; + bool apple = false; if (!(ir_dev->raw->enabled_protocols & IR_TYPE_NEC)) return 0; @@ -158,7 +159,14 @@ static int ir_nec_decode(struct input_dev *input_dev, struct ir_raw_event ev) command = bitrev8((data->bits >> 8) & 0xff); not_command = bitrev8((data->bits >> 0) & 0xff); - if ((command ^ not_command) != 0xff) { + /* Apple remotes use an NEC-like proto, but w/o a checksum */ + if ((address == 0xee) && (not_address == 0x87)) { + apple = true; + IR_dprintk(1, "Apple remote, ID byte 0x%02x\n", + not_command); + } + + if (((command ^ not_command) != 0xff) && !apple) { IR_dprintk(1, "NEC checksum error: received 0x%08x\n", data->bits); break; -- 1.7.1 -- Jarod Wilson jarod@xxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
