From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Ott Subject: [PATCH 0/1] HID: Report Descriptor in Sysfs Date: Fri, 21 Jan 2011 01:19:44 -0500 Message-ID: <1295590785-7101-1-git-send-email-alan@signal11.us> Return-path: Received: from core.signal11.us ([64.251.29.136]:37674 "EHLO core.signal11.us" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753837Ab1AUGTv (ORCPT ); Fri, 21 Jan 2011 01:19:51 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by core.signal11.us (Postfix) with SMTP id D66371CCABA9 for ; Fri, 21 Jan 2011 01:19:50 -0500 (EST) Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Jiri Kosina , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Alan Ott So I'd like to have access to the HID report descriptor in a sysfs entry, so I can read it without opening the device. hid-core seemed like the place to put it. Using the /sys/class links, for hidraw devices, this puts a new file, report_descriptor in the directory: /sys/class/hidraw/hidraw0/device/ For my USB device (for example), the new file is in: /sys/bus/usb/devices/1-5.3:1.0/0003:046D:C216.0001/ For my Bluetooth device, the new file is in: /sys/class/bluetooth/hci0/hci0:11/0005:054C:0268.0002/ I'm not super confident that these file locations are the best place, but I made a best guess so that it could be discussed. The current location is where the hid-core stuff lives. Is there a reason these directories are named bus:vendor:product:id (instead of hid-core or something similar)? Is there a better way to do this? Alan. Alan Ott (1): hid: Add HID Report Descriptor to sysfs. drivers/hid/hid-core.c | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+), 0 deletions(-)