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authorMauro Carvalho Chehab <mchehab@redhat.com>2010-12-30 08:01:01 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-12-30 12:17:05 -0200
commitb22374544b981b82f7319a02e6b718fc796e9cfa (patch)
tree5c44fb2984127c160c6be4ff81539ecc8c936602
parent61ea3aa5bf309333c6655ccef825b4a765bff219 (diff)
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[media] bttv-input: Add a note about PV951 RC
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>
-rw-r--r--drivers/media/video/bt8xx/bttv-input.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/media/video/bt8xx/bttv-input.c b/drivers/media/video/bt8xx/bttv-input.c
index 7f48306..97793b9 100644
--- a/drivers/media/video/bt8xx/bttv-input.c
+++ b/drivers/media/video/bt8xx/bttv-input.c
@@ -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;