On Wed, Mar 15, 2006 at 12:27:08PM -0500, John Baldwin wrote: > On Wednesday 15 March 2006 12:11, Rick C. Petty wrote: > > > > My BIOS (Asus A8N-E rev 1010) has no option for disabling USB keyboard > > support, but I can either disable the USB controller or disable the USB > > legacy support. I doubt either of these is desirable. Fortunately, I > > discovered the problem.. > > The "legacy support" option is the one that makes a USB keyboard look like > a PS/2 keyboard.
If I disable legacy support, the USB keyboard is useless until the kernel comes up multi-user and usbd is started, as I expected. Other than that, everything behaves identically. > > Whenever ukbd is loaded by /boot/loader and that > > device already exists in the kernel, the boot locks up after: > > > > atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 > > > > when using a USB keyboard. I would think this is a bug. It is 100% > > repeatable for me. If I comment out the line in /boot/loader.conf, the > > system boots nicely. > > Ok. There are several edge cases that can blow up if you kldload a module > or load a module from the loader that is already present in the kernel. I would think the loader or the kernel should be smart enough not to break when loading an already-loaded module. Is there a workaround? If not, all kernels must be compiled with ukbd (if they are to support USB keyboards in single-user mode, e.g.). There should also be a warning "BEWARE: Do not set ukbd_load in your loader.conf" :-P Seriously, though, the kernel should not break when loading an unloaded module. I first noticed this whenever I had umass(4) in the kernel and it wouldn't detect my USB memory stick but then kldload'd it, saw "File exists", but then it would be detected. I remember removing umass from my config and it behaving quite differently. I never had time to pursue that problem. -- Rick C. Petty _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
