[9fans] Keyboard not working in Raspberry Plan9

[9fans] Keyboard not working in Raspberry Plan9

[Rubén Berenguel]

Hi all,

I am trying to use a Cherry USB Keyboard (with ID card reader... of
course I don't need the reader with P9 but it's the USB keyboard I
have at hand) with P9 in the Raspberry.

The keyboard works just fine with all other Raspberry OSes I have
tried (Raspbian, RaspBMC and IIRC, I also tried with RISC OS once.)
But with Plan9 it doesn't work at all. If I have it plugged from start
the system won't boot (halts when starting the USB devices and hangs
there) and if I plug it after bootup, it does nothing at all (not even
error logging in the error window.)

I have tried this same keyboard under qemu's Plan9 (under Mac OS host)
and it works without problems. I'm not sure if Mac OS serves the USB
device "as is" and then Plan9 has to use its driver to use it (which
would mean the keyboard is OK for Plan9) or Mac OS hides the device
behind a generic USB keyboard to show to the virtual machine.

So I'm not sure if (for some reason) Plan9 can't use it because it
doesn't work under Plan9 (except for the card reader, it is a standard
USB keyboard, nothing fancy,) if Plan9 draws more energy from the
Raspberry (go figure) and makes the keyboard unavailable (doesn't make
much sense, since I can plug the keyboard and an USB mouse at the same
time with all other operating systems.) Any ideas?

Regards,

Ruben Berenguel

Re: [9fans] Keyboard not working in Raspberry Plan9

[Richard Miller]

The plan 9 usb keyboard driver only implements the simplified
'boot protocol' which most, but not all, keyboards support.
Maybe this particular one doesn't?

Re: [9fans] Keyboard not working in Raspberry Plan9

[Rubén Berenguel]

I have no idea... How can I check?

On Mon, Aug 12, 2013 at 5:41 PM, Richard Miller <9fans@hamnavoe.com> wrote:
> The plan 9 usb keyboard driver only implements the simplified
> 'boot protocol' which most, but not all, keyboards support.
> Maybe this particular one doesn't?
>
>

Re: [9fans] Keyboard not working in Raspberry Plan9

[Richard Miller]

On one of the other operating systems, 'lsusb -v' should give lots of information
about the device, some of which might be useful.

Re: [9fans] Keyboard not working in Raspberry Plan9

[Rubén Berenguel]

I'm not absolutely sure if this settles it, but bInterfaceSubClas is 1
Boot Interface Subclass so it should (according to what I've read
around usb.org and Wikipedia) support the usb boot protocol for
keyboards... I'm completely unsure :/ Maybe I should grab a Logitech
K120 (the plain, old simple keyboard) next time I'm in a shop

Ruben

On Mon, Aug 12, 2013 at 5:49 PM, Richard Miller <9fans@hamnavoe.com> wrote:
> On one of the other operating systems, 'lsusb -v' should give lots of information
> about the device, some of which might be useful.
>
>