Re: [9fans] Writing device drivers

["Paweł Lasek" <pawel.lasek@gmail.com>]

On 4/15/06, Anthony Sorace <anothy@gmail.com> wrote:

> personally, i'd love firewire/ieee1394 support, although that's mostly
> because i've got a small stack of such disks available to me, mostly
> sitting idle. i believe someone (peter bosch?) was working on this a
> few years ago.

I agree - firewire bus/device class drivers + at least ohci1394 would
be a great thing...

> for getting familiar with the plan 9 interfaces and such, you can get
> started by just writing a driver that does something simple,
> software-only. i found that quite educational getting started. go
> write /dev/rot13 or something. for something trivial with real
> hardware... has anyone ever bothered to write a driver for the PC
> speaker? that should be fairly easy (but then, it is a PC, so i
> wouldn't be shocked if not).
>

For a little project - why not create kernel mode port of linux coffee
machine driver? (somewhere in the HOWTOs :D)


Not so long ago I tried to plunge through SCSI code to make Plan9 work
on my machine without Xen&co, but I decided to withdraw when I found
I'd have to write a compiler for firmware (and possibly rewrite
BSD/Linux firmware) in addition to driver itself... (Adaptec AIC-7892
- UltraWide2...)
--
Paul Lasek