Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755521AbZICOMU (ORCPT ); Thu, 3 Sep 2009 10:12:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753130AbZICOMT (ORCPT ); Thu, 3 Sep 2009 10:12:19 -0400 Received: from mail.cs.nmsu.edu ([128.123.64.3]:61198 "EHLO mail.cs.nmsu.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755319AbZICOMS (ORCPT ); Thu, 3 Sep 2009 10:12:18 -0400 Message-ID: <738fcf0e7c98ac7f03a8c32a1a462bdc.squirrel@intranet.cs.nmsu.edu> In-Reply-To: <20090903005051.GA6733@kroah.com> References: <20090903005051.GA6733@kroah.com> Date: Thu, 3 Sep 2009 08:12:19 -0600 Subject: Re: Problem starting the input interrupt pipe on the G13 From: "Rick L. Vinyard, Jr." To: "Greg KH" Cc: "Linux USB" , "LKML" User-Agent: SquirrelMail/1.4.19 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Priority: 3 (Normal) Importance: Normal Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1846 Lines: 52 Greg KH wrote: > On Wed, Sep 02, 2009 at 03:25:50PM -0600, Rick L. Vinyard, Jr. wrote: >> Hello, >> >> I'm still working on the G13 driver, but I've run into a problem with >> the >> interrupt in pipe. In essence, I can't figure out how to get it started. >> >> The driver can be found at: >> http://g13.svn.sourceforge.net/viewvc/g13/driver/trunk/ >> >> I think the root of the problem lies in the fact that the G13 usage page >> is 0x00 (undefined). The output and feature reports seem to be working >> fine to set the backlight color, the LCD image and the leds on the 'M' >> keys. >> >> However, nothing seems to be happening with the input report (there is >> only one input report type on endpoint address 0x81 that contains the >> joystick and key values). >> >> The problem is getting the input pipe started. I grepped through the >> other >> drivers in the hid directory and I couldn't find any that had to >> explicitly start the input interrupt. > > Have you just submitted an interrupt urb? > > That should be all that is needed, when the device has data, it will > return with it if your urb is pending. > I'll give it a shot. I hadn't tried it yet since I wasn't sure if that was the intended way to start it up within the HID framework since none of the other drivers submitted the urb. Also, submitting the urb requires the usbhid_device structure. Since the usbhid_device structure is defined in usbhid.h, and usbhid.h isn't installed with the kernel headers I wasn't sure if there was a better way to do it (raw events, input mapping or something along those lines). --- Rick -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/