On Fri, Jul 12, 2013 at 10:27:59AM +0200, Niels de Vos wrote: > On Fri, Jul 12, 2013 at 01:33:52AM -0500, Dennis Gilmore wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > On Thu, 11 Jul 2013 17:05:55 +0200 > > Niels de Vos <devos@xxxxxxxxxxxxxxxxx> wrote: > > > > > Hi Peter and others, > > > > > > The following .config options make it possible to use USB on a > > > Wandboard Duallite and likely other i.MX based boards. USB works for > > > me after loading the modules manually: > > > > > > [root@wandboard ~]# modprobe ci13xxx_imx > > > [root@wandboard ~]# modprobe usbmisc_imx > > > [root@wandboard ~]# dmesg > > > > tested your scratch build on my wandboard quad i only had to load > > usbmisc_imx as ci13xxx_imx was already loaded. I wonder if we need to > > patch dracut to pull the module into the initramfs and it will just > > work. > > I think loading the modules should happen automatically and depends on > the dtb that is used. The ci13xxx_imx supports USB-OTG and there are > some references to that in the dtb for the Quad, but fewer for the > Duallite. At least, thats my understanding after a quick look. > > Whatever should trigger loading if usbmisc-imx is unclear to me. Maybe > there should be an option to include the usbmisc_imx module in > ci13xxx_imx... Oh well, something to ponder about later. Ideas welcome! The dtb and all are good. The usbmisc-imx module is only missing the alias information for automatic detection/loading. The table that contains this information in the module is not exported, and depmod does not generate the details, so that modprobe does not know to load the module. A one-line patch makes this work, and it seems that this already has been merged upstream too: - http://thread.gmane.org/gmane.linux.usb.general/88501 (commit-id in Linus' tree: 269b83dc9ce007efc4393e8a5b77f208a0e18e4a) Cheers, Niels _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
