On Friday 15 August 2008 7:19:48 am Randy Dunlap wrote: > On Sun, 10 Aug 2008 04:08:37 +0100 Aivils Stoss wrote: > > On Saturday 09 August 2008 11:42:26 am Samuel Thibault wrote: > > > Aivils Stoss, le Fri 08 Aug 2008 07:02:24 +0100, a écrit : > > > > I suppose this is Linux kernel bug because i test keyboards under > > > > Windows, which support any schema of cascading of usb hubs. > > > > > > On the very same machine and hubs? > > > > Yes, on same machine. Under Windows i don't have evdev interface, > > checked only how keypress go to console. > > Of course to repeat a try You must have at least 5 keyboards and > > 1 7-port or 2 4-port hubs and kernel 2.6.22 and above. I allways > > got result - 5th, 6th, 7th keyboard does not send events to console > > or evdev. > > [adding linux-usb mailing list] > > Hi, > > I finally got 5 USB keyboards together along with 2 hubs. > I daisy-chained the hubs and connected 1 keyboard to the hub that is > on the notebook computer USB port, then I connected 4 keyboards to the > second hub. They all worked for me, meaning that I can type on all of > them and have their characters show up on my console. > > I'm testing with 2.6.7-rc2. > 'usbtree' output of the USB subsystem is attached. Yeah! 2.6.7 is a bit obsolete. At my end 2.6.15 support more than 4 keyboards per PC port , but mess up input when is plugged more than 9 keyboards. 10th is capable to send keypress events, but last pressed key will be repeated until ctrl-c . 10th keyboard disturb an auto repeat of all keyboards. Aivils > > > --- > ~Randy > Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA > http://linuxplumbersconf.org/ -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
