On Sat, 2009-10-03 at 00:49 +0300, Aleksandr V. Piskunov wrote:
> Preliminary version of patch adding support for AVerTV MCE 116 Plus remote.
> This board has an IR sensor is connected to EM78P153S, general purpose 8-bit
> microcontroller with a 1024 × 13 bits of OTP-ROM. According to i2cdetect, it is
> sitting on address 0x40.
>
> Patch allows ir-kbd-i2c to probe cx2341x boards for this address. Manually
> loading ir-kbd-i2c now detects remote, every key is working as expected.
>
> As I understand, current I2C/probing code is being redesigned/refactored. Sheer
> amount of #ifdefs for every second kernel version is making my eyes bleed, so
> please somebody involved check if patch is ok.
Aleksandr,
> Should I also add the 0x40 address to addr_list[] in ivtv-i2c.c? How to point
> ivtv to this remote and autoload ir-kbd-i2c?
No.
At first glance, this patch doesn't look safe for all ivtv boards so:
Naked-by: Andy Walls <awalls@xxxxxxxxx>
In ivtv-i2c.c I see:
#define IVTV_MSP3400_I2C_ADDR 0x40
It is probably not good to assume that only an IR microcontroller could
be at I2C address 0x40 for a CX2341x adapter.
I will work up an ivtv specific change similar to what I did in
cx18-cards.c and cx18-i2c.c for IR on the HVR-1600 for bringing up the
IR for the M116 cards alone.
What kernel version do you use?
Regards,
Andy
> diff --git a/linux/drivers/media/video/ir-kbd-i2c.c b/linux/drivers/media/video/ir-kbd-i2c.c
> --- a/linux/drivers/media/video/ir-kbd-i2c.c
> +++ b/linux/drivers/media/video/ir-kbd-i2c.c
> @@ -461,7 +461,7 @@
> }
> break;
> case 0x40:
> - name = "AVerMedia Cardbus remote";
> + name = "AVerMedia RM-FP/RM-KH remote";
> ir->get_key = get_key_avermedia_cardbus;
> ir_type = IR_TYPE_OTHER;
> ir_codes = &ir_codes_avermedia_cardbus_table;
> @@ -706,8 +706,12 @@
> ir_attach(adap, msg.addr, 0, 0);
> }
>
> - /* Special case for AVerMedia Cardbus remote */
> - if (adap->id == I2C_HW_SAA7134) {
> + /* Special case for AVerMedia remotes:
> + * AVerTV Hybrid+FM Cardbus
> + * AVerTV MCE 116 Plus
> + * probably others with RM-FP, RM-KH remotes and microcontroller
> + chip @ 0x40 */
> + if ((adap->id == I2C_HW_SAA7134) || (adap->id == I2C_HW_B_CX2341X)) {
> unsigned char subaddr, data;
> struct i2c_msg msg[] = { { .addr = 0x40, .flags = 0,
> .buf = &subaddr, .len = 1},
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