Re: BUG: bttv does not load module ir-kbd-i2c for Hauppauge model 37284, rev B421

["Frank Schäfer" <fschaefer.oss@googlemail.com>]

<snip>
>
>>> It probably makes sense to add a "has_ir_i2c" field at bttv, add a flag
>>> there at modprobe to prevent the autoload, and start tagging the boards
>>> with I2C IR with such tag.
>> Without having looked into the code, it seems that the driver detects
>> the i2c rc already without a board flag.
>> Otherwise it wouldn't register the i2c device. Unfortunately, it doesn't
>> display a message.
> No. In the past (kernel 2.4 and upper), I2C bus used to work with 0-len
> reads to scan the used I2C addresses. The I2C drivers like tuners, demods,
> IR's etc used to register to the I2C core saying that they were to be used
> on TV boards. The I2C logic binds them to the I2C bus driver when they were
> detected, during the scanning process.
>
> That's why it is so hard to know what boards are using I2C remotes, on
> those older drivers.

Hmmm... so the I2C subystem probes a list of addresses and just
registers all devices it finds, but the driver itself doesn't know if
one of them is a RC device ?
Sounds odd. Will have to check the code to understand what's going on...

Regards,
Frank