Hi, David, Thank you so much for your response.
I am not quite understand what you mean by "It's safe to leave that BIOS feature enabled, unless your BIOS is buggy in that area, since Linux turns it off later if you start up the "native" USB.". Does "native usb" mean the usb driver in linux kernel? If it does, then USB Emulation might not be turned off even when usb drivers have started up. Because I am using RTAI, an real time abstract interface. Its latency test program shows that usb emulation causes large latency. Thanks again, jing Quoting David Brownell <[EMAIL PROTECTED]>: > > > | What is USB emulation? > > > > USB emulation is a BIOS option (in some BIOSen) which makes a USB > > keyboard and mouse look like a PS/2 keyboard and mouse. > > It is for use when you don't have any USB support in an OS, or > > won't be booting an OS. > > Or when you'll be using a USB keyboard when booting, maybe > to talk with the BIOS ... > > It's safe to leave that BIOS feature enabled, unless your > BIOS is buggy in that area, since Linux turns it off later > if you start up the "native" USB. > > - Dave > > > > > ------------------------------------------------------- This SF.net email is sponsored by: IBM Linux Tutorials. Become an expert in LINUX or just sharpen your skills. Sign up for IBM's Free Linux Tutorials. Learn everything from the bash shell to sys admin. Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
