From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755367AbYHOBtk (ORCPT ); Thu, 14 Aug 2008 21:49:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752512AbYHOBtb (ORCPT ); Thu, 14 Aug 2008 21:49:31 -0400 Received: from xenotime.net ([66.160.160.81]:52031 "HELO xenotime.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752499AbYHOBt3 (ORCPT ); Thu, 14 Aug 2008 21:49:29 -0400 Date: Thu, 14 Aug 2008 18:49:48 -0700 From: Randy Dunlap To: Aivils Stoss , lud Cc: Samuel Thibault , linux-input@vger.kernel.org, jkosina@suse.cz, linux-kernel@vger.kernel.org, linuxconsole-dev@lists.sourceforge.net Subject: Re: PROBLEM: USB keyboards works only 4 per PC host port Message-Id: <20080814184948.093d2cad.rdunlap@xenotime.net> In-Reply-To: <200808100408.37473.aivils@latnet.lv> References: <200808080702.24969.aivils@latnet.lv> <20080809104226.GF4546@implementation> <200808100408.37473.aivils@latnet.lv> Organization: YPO4 X-Mailer: Sylpheed 2.5.0 (GTK+ 2.12.0; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="Multipart=_Thu__14_Aug_2008_18_49_48_-0700_NLUsxwZgbXZeG6Wo" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --Multipart=_Thu__14_Aug_2008_18_49_48_-0700_NLUsxwZgbXZeG6Wo Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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 =E9crit : > > > 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? >=20 > 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. --- ~Randy Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA http://linuxplumbersconf.org/ --Multipart=_Thu__14_Aug_2008_18_49_48_-0700_NLUsxwZgbXZeG6Wo Content-Type: text/plain; name="usb-kbds.txt" Content-Disposition: attachment; filename="usb-kbds.txt" Content-Transfer-Encoding: quoted-printable /: Bus 05.Port 1: Dev 1, Class=3Droot_hub, Drv=3Duhci_hcd/2p, 12M /: Bus 04.Port 1: Dev 1, Class=3Droot_hub, Drv=3Duhci_hcd/2p, 12M |_ Port 1: Dev 2, If 0, Prod=3DMicrosoft IntelliMouse=AE Explorer, Clas= s=3DHID, Drv=3Dusbhid, 1.5M |_ Port 2: Dev 3, If 0, Prod=3DGeneric USB Hub, Class=3Dhub, Drv=3Dhub/= 4p, 12M |_ Port 1: Dev 8, If 0, Prod=3DMobility USB EasiDock 200, Class=3Dh= ub, Drv=3Dhub/9p, 12M |_ Port 1: Dev 17, If 0, Prod=3DAPI USB KB HUB, Class=3Dhub, Dr= v=3Dhub/3p, 12M |_ Port 1: Dev 18, If 0, Prod=3DAPI USB KB HUB, Class=3DHID= , Drv=3Dusbhid, 12M |_ Port 2: Dev 19, If 0, Prod=3D, Class=3DHID, Drv=3Dusbhid= , 1.5M |_ Port 2: Dev 14, If 0, Prod=3DUSB Keyboard, Class=3DHID, Drv= =3Dusbhid, 1.5M |_ Port 2: Dev 14, If 1, Prod=3D, Class=3DHID, Drv=3Dusbhid, 1.= 5M |_ Port 3: Dev 13, If 0, Prod=3DUSB Multimedia Keyboard, Class= =3DHID, Drv=3Dusbhid, 1.5M |_ Port 3: Dev 13, If 1, Prod=3D, Class=3DHID, Drv=3Dusbhid, 1.= 5M |_ Port 4: Dev 11, If 0, Prod=3DDell USB Keyboard Hub, Class=3D= hub, Drv=3Dhub/3p, 12M |_ Port 1: Dev 12, If 0, Prod=3DDell USB Keyboard, Class=3D= HID, Drv=3Dusbhid, 12M |_ Port 1: Dev 12, If 1, Prod=3D, Class=3DHID, Drv=3Dusbhid= , 12M |_ Port 8: Dev 9, If 0, Prod=3DMobility PS/2 Keyboard And Mouse= I/F, Class=3DHID, Drv=3Dusbhid, 12M |_ Port 9: Dev 10, If 0, Prod=3DMobility USB Serial Converter, = Class=3Dvend., Drv=3Dnone, 12M |_ Port 2: Dev 15, If 0, Prod=3DMultimedia Keyboard Hub, Class=3Dhu= b, Drv=3Dhub/3p, 12M |_ Port 1: Dev 16, If 0, Prod=3DMultimedia Keyboard Hub, Class= =3DHID, Drv=3Dusbhid, 12M |_ Port 1: Dev 16, If 1, Prod=3D, Class=3DHID, Drv=3Dusbhid, 12M /: Bus 03.Port 1: Dev 1, Class=3Droot_hub, Drv=3Duhci_hcd/2p, 12M /: Bus 02.Port 1: Dev 1, Class=3Droot_hub, Drv=3Duhci_hcd/2p, 12M /: Bus 01.Port 1: Dev 1, Class=3Droot_hub, Drv=3Dehci_hcd/8p, 480M --Multipart=_Thu__14_Aug_2008_18_49_48_-0700_NLUsxwZgbXZeG6Wo--