From mboxrd@z Thu Jan 1 00:00:00 1970 From: Padfoot Subject: Re: PROBLEM: Kernel version 3.2.1 usb touchscreen device not recognised [UDEV? USBINPUT? HOOK] Date: Sat, 21 Jan 2012 07:13:58 +1100 Message-ID: <4F19CB06.6040801@exemail.com.au> References: <4F192242.1070909@exemail.com.au> <20120120160210.GA21565@kroah.com> Reply-To: padfoot@exemail.com.au Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20120120160210.GA21565@kroah.com> Sender: linux-kernel-owner@vger.kernel.org To: Greg KH Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org List-Id: linux-input@vger.kernel.org On 21/01/12 03:02, Greg KH wrote: > On Fri, Jan 20, 2012 at 07:13:54PM +1100, Padfoot wrote: >> Upgrade from kernel 3.1.9 to 3.2.1 eGalax usb touchscreen device is >> no longer recognised. >> >> Device is an Acer Iconia Tab w501 with inbuilt touchscreen. Screen >> is a pci device but is connected on boot as a usb input device. >> Issue appears to be with either UDEV or USBINPUT boot hook failing >> to recognise the device as can be seen in the dmesg.3.2.1 >> attachment. >> >> Downgrading to kernel 3.1.9 corrects the issue. > Can you run 'git bisect' between 3.1.0 and 3.2.0 to find the problem > commit here? > > Also, you might want to cc: the linux-input developers, they can help > you out much better than the general list can. > > greg k-h > Hi Greg, I am not a kernel dev, nor have I ever compiled a kernel, so I don't think I am able to help with a git bisect to locate the offending commit. I am just a regular user running pre-compiled packages on my Arch Linux distro. But, of course I am happy to assist wherever I can. Cheers. Lachlan