[Mac-on-linux-devel] USB issues with a webcam

[didier <di...@gm...>]

Hi,
I'm running MOL svn HEAD and an Ubuntu box with linux 2.6.22 with
tiger as guest and I'm trying to use a webcam (I only want to use the
mic).

The mic works in Linux or when booting OSX but not in MOL.

- if by mistake I don't remove snd_usb_audio, the first call to
usbdev.c:usb_connect_probe() only fails on claiming interface 1 not 0
so I get a lot of :
     usbfs: process 20977 (mol) did not claim interface 2 before use
in syslog and OSX doesn't fully see the micro anyway.
I don't know if it's a linux/driver bug but if it's a normal behavior
something like:

                        for( iface=0; iface<10; iface++ )
                                if( ioctl(fd, USBDEVFS_CLAIMINTERFACE,
&iface) < 0 ) {
                                        if (errno == EBUSY) {
                                                iface = 0;
                                        }
                                        break;
                                }
seems to work.

- without the module, OSX finds the micro (USB prober or control
panel) but it never start transfer.

So:
- Does isochronous transfer work?

- In USB prober KLog.ext panic OSX guest when I'm trying to capture
the traffic, it's my setup or it never works?

- How hard would it be to add an input in MOLAudio OSX driver?

Didier