Re: MIDI and PCMCIA

[Takashi Iwai <tiwai@suse.de>]

At 17 Jun 2003 22:59:43 +0000,
Giuliano Pochini wrote:
> 
> On sab, 2003-06-14 at 22:06, Paul Davis wrote:
> > >
> > >Some of the cards by Echoaudio have a midi port, but it's not MPC401
> > >compatible. The card has two tiny buffers to send and receive bytes. Where
> > >can I get infos, sample code, etc. to add midi support to my driver ?
> > >The Layla24 also exists in PCMCIA edition. Just like above, I need docs...
> 
> > no docs explicitly, but the hdsp (as just one example; there are
> > others within the driver tree) has a midi port that is completely
> > unrelated to MPC401. it also uses a tasklet to handle midi i/o so as
> > not to affect audio latency.
> 
> Tnx, the code seems quite clear.
> 
> And about the PCMCIA ?

if it's a cardbus, the driver will look just like a normal PCI
driver.  hdsp is a good example.  it's based on the normal pci_driver
struct.  (although it has a xilinx firmware loading routine).

if it's a pccard, you'll need the entry code for cs, and will be a bit
more complicated.  take a look at vx-pocket drivers.


Takashi


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