Re: iBook problems and solutions

Hello,

Michael Lorenz wrote:

>>So our awacs driver doesn't like the DACA variety.
Thanks for testing,  
>>unfortunately I can't do much about it without
access to this kind of  
>>hardware.

>... and digging a little further it really shouldn't
since daca is not  
>awacs compatible, the DMA backend is just similar enough
to produce  
>audible output sometimes.
>I'll hack the snapper driver to do the right thing here
and change  awacs 
>to attach only to chips that are really awacs.

You probably already know this, but OpenBSD uses a different
driver for
DACA.  (How well it works I can't comment on, since I've
never used
OpenBSD on my iBook.)

Interestingly, their man page says (under authors): 
"The daca
driver was written by Tsubai Masanari and ported to OpenBSD
by Joris
Vink."  So it may be that something was written for
NetBSD a long
time ago but didn't make it into the tree?

Regards,

Dave

Hi,

On 8/26/07, David H. Gutteridge <dhgutteridgesympatico.ca> wrote:
> Michael Lorenz wrote:
> >... and digging a little further it really
shouldn't since daca is not
> >awacs compatible, the DMA backend is just similar
enough to produce
> >audible output sometimes.
> >I'll hack the snapper driver to do the right thing
here and change  awacs
> >to attach only to chips that are really awacs.
>
> You probably already know this, but OpenBSD uses a
different driver for
> DACA.  (How well it works I can't comment on, since
I've never used
> OpenBSD on my iBook.)
>
> Interestingly, their man page says (under authors): 
"The daca
> driver was written by Tsubai Masanari and ported to
OpenBSD by Joris
> Vink."  So it may be that something was written
for NetBSD a long
> time ago but didn't make it into the tree?

In fact, this [1] appears to be a "daca" driver
for NetBSD, written by
Tsubai Masanari. I can't test it too, though, since I don't
have DACA
hardware.

[1] http://cvsweb.ki.nu/mef/macppc/sys/arch/macppc/dev/daca
.c

     -Marco

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hello,

On Aug 26, 2007, at 06:35, Marco Trillo wrote:

> On 8/26/07, David H. Gutteridge <dhgutteridgesympatico.ca> wrote:
>> Michael Lorenz wrote:
>>> ... and digging a little further it really
shouldn't since daca is 
>>> not
>>> awacs compatible, the DMA backend is just
similar enough to produce
>>> audible output sometimes.
>>> I'll hack the snapper driver to do the right
thing here and change  
>>> awacs
>>> to attach only to chips that are really awacs.
>>
>> You probably already know this, but OpenBSD uses a
different driver 
>> for
>> DACA.  (How well it works I can't comment on, since
I've never used
>> OpenBSD on my iBook.)
>>
>> Interestingly, their man page says (under authors):
 "The daca
>> driver was written by Tsubai Masanari and ported to
OpenBSD by Joris
>> Vink."  So it may be that something was
written for NetBSD a long
>> time ago but didn't make it into the tree?
>
> In fact, this [1] appears to be a "daca"
driver for NetBSD, written by
> Tsubai Masanari. I can't test it too, though, since I
don't have DACA
> hardware.
>
> [1] http://cvsweb.ki.nu/mef/macppc/sys/arch/macppc/dev/daca
.c

It won't work as it is. But the DAC is simple enough, I
think I can 
hack up something that works in the very near future.

have fun
Michael
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (Darwin)

iQEVAwUBRtFuIMpnzkX8Yg2nAQLgMwf5Afo+wiVqd6h8YFu7TDHnNo117Wz+
MLTl
U0P7SWOOZIyBWrXmpim57/s2hVy688UDof4F5yVE6ZMPfX+yQQmjWrjvdGpm
1Wv1
ps/jLpn/39PscwZF2ZMDtQddUNMC54IUe6fMFbgiXX2M+AsPxGozzaq0BcG2
Kez6
rs5e595aObIbZzwJzhpxikcmMMODZ+kf+5mlEHjO2gFYdqM+RqWiEq5QAoXc
Xgpx
S2T0UAUtr1mhRDdnlE+MPYVjPNmhRqF0ywkl07ZvvlWY8sNdkpqZvr0+fiSl
ckHo
NaKa701lFPZt+HlMWtqTLQdEPa1MJ6YwQdOkSlrmeReIdbjnrw97Kg==
=YwDY
-----END PGP SIGNATURE-----