[haiku-development] Re: Driver Development
- From: "Ithamar R. Adema" <ithamar.adema@xxxxxxxxxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Mon, 09 Mar 2009 19:35:21 +0000
Hi Alex,
Alexander Baldeck wrote:
just to jump on the train I have a question I'd like to raise. I now
and then stumble across people that develop drivers for Haiku/*Beos
but don't seem to merge stuff to trunk very often. Even if I'm
mistaken, is there a list of drives that are currently in development
or maintained/unmaintained outside of trunk?
There's not really a list, but posting to this list will work quite well
in most cases, as you see ;)
Specifically, I'm asking because I am about to get my hands dirty on a
usb-audio driver. The one in src/add-ons/kernel/drivers/audio seems to
be very outdated and not working at all. :)
See the mail from Alexandre, someone at least started looking into it,
but not sure if he's still working on it. However, you should be aware
that this requires isoc. xfers in the USB stack, which currently is only
working for UHCI (USB 1.1) controllers. I've started work to implement
this for EHCI (USB 2.0) as well, though it will take some time before
that can be declared working and stable.
However, if you use USB 1.1 devices, and have UHCI controllers onboard
(often included in USB 2.0 supporting mobo's) you should be ok!
I'll commit my EHCI work as soon as I've got something close to working
so you can test ;)
HTH,
Ithamar.
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