Re: [9fans] Small Plan 9 Platforms

["Brian L. Stuart" <blstuart@bellsouth.net>]

On Sat, 8/15/15, Steve Simon <steve@quintile.net> wrote:
> Vncserv must do something similar, maybe that is worth looking at.
> I went down a similar route but am planning to just address
> the display as a different type of device, rather than as a plan9 display.

Good point.  Hadn't thought about that.  I'll take a look and see
if it has anything that might help.

> Your progress is very impressive, my project stalled - I must get back to it.

The other option I've been thinking about since late yesterday
is to create a variant of devdraw (or add hooks into the existing
devdraw) that allows it to shoot off a request to another device
for every screen update.

My ideal for this scenario is to have a single kernel image that
will simultaneously display on both the HDMI port and the SPI
display.  Then add some bits to boot.rc so that at boot-time, the
user can indicate whether they've got the SPI display installed
and whether to set the geometry and fonts accordingly.  Some
of that may end up being a potential project for students in the
class to do :)

BLS