Em Tue, 29 May 2018 15:29:29 +0200
Wolfram Sang escreveu:
> > It is a very bad idea to replace an i2c xfer by a pair of i2c
> > send()/recv(), as, if are there any other device at the bus managed
> > by an independent driver, you may end by mangling i2c transfers and
> > eventually cause device
> It is a very bad idea to replace an i2c xfer by a pair of i2c
> send()/recv(), as, if are there any other device at the bus managed
> by an independent driver, you may end by mangling i2c transfers and
> eventually cause device malfunctions.
For I2C, this is true and a very important detail.
Em Sun, 6 May 2018 23:19:18 +0900
Akinobu Mita escreveu:
> The ov772x driver only works when the i2c controller have
> I2C_FUNC_PROTOCOL_MANGLING. However, many i2c controller drivers don't
> support it.
>
> The reason that the ov772x requires I2C_FUNC_PROTOCOL_MANGLING is that
> it doesn't
The ov772x driver only works when the i2c controller have
I2C_FUNC_PROTOCOL_MANGLING. However, many i2c controller drivers don't
support it.
The reason that the ov772x requires I2C_FUNC_PROTOCOL_MANGLING is that
it doesn't support repeated starts.
This changes the reading ov772x register method
