On Tue, 2011-01-04 at 12:19 -0800, David Miller wrote: > First of all, the machine dies because those illegal I/O accesses > generate an unrecoverable asynchronous memory error, we cannot recover > from it so we have to panic the entire machine. > > Secondly, the keyboard doesn't work because I never implemented the > monstrous amount of code necessary to allow USB keyboard to work with > OpenPROM after booting up. > > You have to essentially reset the entire USB host controller, unload > all of the pending queued URBs in the host controller, put it into a > quiescent state, and then asynchronously process all USB keyboard > device events via USB host controller polling implemented via OpenPROM > backcalls into the kernel, and from there feed the characters to > OpenPROM so it can see the keypresses. Upon return from OpenPROM you > have to reload all of the unloaded URBs back onto the USB host > controller queues so the kernel can use USB again. > > I never considered this enormous amount of work worth doing, the > payback is just too small. Thank you for that explanation, it's much appreciated. -- Tactical Nuclear Kittens -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
