Jochen Friedrich wrote:
Hi Antti,
Could you explain for changes af9015_i2c_xfer() done? Is it for case I2C
READ coming from MC44S803 but tuner does not implement read at all? Is
it really needed?
Yes. Currently, MC44S803 uses a READ in mc44s80x_get_devid() to check the ID register.
According to the spec from freescale, a READ needs to be a seperate I2c transaction,
because the STOP bit is used to latch the address registers. That's the reason why a
dedicated READ support is needed (most other tuners use a WRITE / READ combined I2c
transaction instead).
OK. Maybe comment to the code is required, but I can add it. I am
willing to see, if you have, usb-sniffs for tuner read and write.
Maybe I can move MC44S803 and needed AF9015 changes to my devel tree at
linuxtv.org... But that does not change problem that tuner is not still
in v4l-dvb-master nor coming for Kernel before Manu will pull it.
Unfortunately, i didn't see any comments from Manu yet...
we will waiting...
Thanks,
Jochen
regards
Antti
--
http://palosaari.fi/
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
