From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <13426df10705040838n687987e0nec67036d3e6c2199@mail.gmail.com> Date: Fri, 4 May 2007 08:38:43 -0700 From: "ron minnich" To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu> Subject: Re: [9fans] usb: keyboards vs. hubs In-Reply-To: <2d59b7fdf57d18ec73dd5a05cb4aa668@terzarima.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20070503185314.B22416@orthanc.ca> <2d59b7fdf57d18ec73dd5a05cb4aa668@terzarima.net> Topicbox-Message-UUID: 5947034a-ead2-11e9-9d60-3106f5b1d025 On 5/4/07, Charles Forsyth wrote: > plan 9 supports the mouse on usb using usb/mouse, running the full protocol, > so it can find it on the hub. > > it does nothing to support the keyboard, so when it works, i'd suspect it's > because you've enabled legacy mode in the bios, which leaves the keyboard > in special `boot device mode', and (perhaps depending on which bios) > that possibly only works when it's directly visible on one of the system's notional root hubs > (ie, directly wired ports without a hub at all). and, of course, there's always the issue that many BIOS USB stacks will support *some*, but not *all*, keyboards. I had this recently with a brand new Sun Ultra40. No PS/2 keyboards for them, no sir! USB! It's the 21st century! So, the hunt for a working USB keyboard turned up several NFG units and one working unit. Summary: Just because the BIOS won't support *a* USB keyboard, does not mean it can not support some other USB keyboard. Just to keep it interesting. ron