On Wednesday, June 20, 2012 4:44:41 pm Ruslan Bukin wrote: > Hi. > > I have the problem with different behavior of snd_hdspe(4) sound card > driver initialization. > > If I load the driver by hand using kldload everything works fine, > but in case of loading driver at boot time (loader.conf) or compile > in kernel the driver can't initialize propertly. > > The snd_hdspe(4) driver is designed to create a pcm child device per > each pair of sound channels. > > The problem is that snd_hdspe loaded normally, but pcm child devices > are not appears. hdspe_pcm_probe() in driver is not called at all. > However snd_hdspe_pcm driver exists in kldstat -v after boot: > 5 1 0xffffffff81377000 a2c8 snd_hdspe.ko (/boot/kernel/snd_hdspe.ko) > Contains modules: > Id Name > 7 hdspe/snd_hdspe_pcm > 6 pci/snd_hdspe > > and I have checked, device_add_child() returns not NULL. > > I played with MODULE_DEPEND as done in snd_hda(4) but no luck. > What can I do to debug the problem?
The snd_hdspe driver probably needs to use DRIVER_MODULE_ORDERED() to ensure the other modules in its kld are registered with new-bus before it tries to attach to devices. -- John Baldwin _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
