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[media] bttv-input: Add a note about PV951 RC

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When comparing lirc-i2c and ir-kbd-i2c/bttv-input logic, a difference
was noticed. As lirc-i2c will be removed soon, store the difference on
a comment inside ir-kbd-i2c, in order to preserve the knowledge we
have about that remote controller.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2010-12-30 08:01:01 -03:00
parent 61ea3aa5bf
commit b22374544b
1 changed files with 12 additions and 0 deletions
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12
drivers/media/video/bt8xx/bttv-input.c
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@ -354,6 +354,18 @@ static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
return 0;
dprintk(KERN_INFO DEVNAME ": key %02x\n", b);
/*
* NOTE:
* lirc_i2c maps the pv951 code as:
* addr = 0x61D6
* cmd = bit_reverse (b)
* So, it seems that this device uses NEC extended
* I decided to not fix the table, due to two reasons:
* 1) Without the actual device, this is only a guess;
* 2) As the addr is not reported via I2C, nor can be changed,
* the device is bound to the vendor-provided RC.
*/
*ir_key = b;
*ir_raw = b;
return 1;