From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Neukum Subject: Re: 2.6.29rc1 breakes usb: hiddev device no longer available Date: Mon, 26 Jan 2009 20:05:07 +0100 Message-ID: <200901262005.08168.oliver@neukum.org> References: <20090126170130.GG6158@vanheusden.com> <20090126182707.GI6158@vanheusden.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20090126182707.GI6158@vanheusden.com> Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: Folkert van Heusden , linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org List-Id: linux-input@vger.kernel.org Am Monday 26 January 2009 19:27:07 schrieb Folkert van Heusden: > > Since version 2.6.29rc1 querying cleware USb devices no longer works. > > 2.6.28 works fine. 2.6.29-rc2 also no longer works. > > the is the FAILURE situation (2.6.29-rc*): > open("/dev/usb/hiddev0", O_RDWR) = 3 > ioctl(3, HIDIOCGDEVINFO, 0xbf90c0d8) = 0 > ioctl(3, HIDIOCAPPLICATION, 0) = -6291455 > ioctl(3, HIDIOCGSTRING, 0x804e2c0) = -1 ENODEV (No such device) Please try this patch. Regards Oliver -- --- linux-2.6/drivers/hid/usbhid/hiddev.c.alt 2009-01-26 20:03:10.000000000 +0100 +++ linux-2.6/drivers/hid/usbhid/hiddev.c 2009-01-26 20:03:17.000000000 +0100 @@ -656,7 +656,7 @@ static long hiddev_ioctl(struct file *fi case HIDIOCGSTRING: mutex_lock(&hiddev->existancelock); - if (!hiddev->exist) + if (hiddev->exist) r = hiddev_ioctl_string(hiddev, cmd, user_arg); else r = -ENODEV;