[pvrusb2] pvrusb2 vs. em8300
mroi at users.sourceforge.net
Thu Feb 16 13:30:32 CST 2006
> What I was hoping to see was that perhaps some alien I2C modules
> were trying to attach to the pvrusb2's I2C bus in the broken. But
> that clearly is not happening here.
That would have been too easy, wouldn't it? ;)
> I diff'ed your log snapshots and the only substantial difference
> (as you point out) is the loading of the firmware. To answer your
> earlier question, it is not required that the pvrusb2 driver load
> the device's controller firmware every time. Basically, once the
> PVR USB2 hardware has its firmware (pvrusb2.f1 in this case)
> downloaded, then it never needs to be loaded again until the device
> is power cycled.
Oh, I didn't know that.
> An interesting experiment might be to power cycle the PVR USB2
> hardware when the em8300 driver is present. In that case, the
> pvrusb2 driver MUST load the device's firmware and you should see
> that in the log. If that still isn't happening, then we've got a
> strong clue to investigate.
That's not it either. I did a power cycle and compared the logs. This
time it actually loads the firmware, which leaves us with zero
significant differences between the working and non-working logs. (Of
course, it does not work after the power cycle either.)
You can get the new log here:
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