Richard has an i2c and spi driver for the pi. I grafted the inferno i2c file system interface on top of Richards driver, though the sub addressed reads are awaiting my return from holiday.

there is a pi gpio and pwm driver which has a pi audio module which sits on top. this produces strange noises with a pi2 which I will dig into shortly.

I think the pi is a wonderful terminal, the only app which would really benefit from Gbit ether is Remote Desktop (imho)

I would love a similar machine with Gbit ether and 2 or 3 sata 3s to replace my ageing file server.

-Steve




> On 6 Aug 2015, at 00:12, Skip Tavakkolian <skip.tavakkolian@gmail.com> wrote:
> 
> RPI's running something like plan9-bcm (check github) where gpio is exposed should work. I'm going to try plan9-bcm this weekend; i'll keep you posted. I like ODROID hardware, but obviously there isn't a Plan 9 port for it.
> 
> Arduino Yún (MIPS+AVR) could make a cool device for Plan 9, but the MIPS part of the hardware is closed.
> 
> On the smaller end of the scale, I've just started porting lib9p to esp8266. I'm using ESP01; it is a cheap yet very capable device.
> 
> On Wed, Aug 5, 2015 at 1:39 PM, Brian L. Stuart <blstuart@bellsouth.net> wrote:
>> I'm teaching a special topics course this fall I'm
>> calling Computing in the Small.  Right now, I'm
>> leaning toward conducting it on a platform that
>> runs Plan 9.  I'm looking for something based on
>> ARM or MIPS and that has some useful connection
>> to the external world in the form of GPIOs.  SPI,
>> I2C, and analog I/O would be nice to have too.
>> Obviously, the Raspberry Pi is a candidate.  What
>> are some others?  I've seen some code in the
>> source tree for the BBB.  Has anyone tried it out
>> to see what is and isn't there?  How about the
>> Banana Pi?  The SATA port on it is quite appealing.
>> Some of the other options I've been looking at
>> include the VIA APC Rock and Paper, the Phytec
>> Cosmic, the CubieBoard, the Odroid, the Riotboard,
>> and the Wandboard.  Has anyone done anything
>> on porting Plan 9 to any of them?  Are there others
>> I'm missing that would be good targets for such a class?
>> 
>> Thanks in advance,
>> BLS
>