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* HID: fix debugfs build with !CONFIG_DEBUG_FSJiri Kosina2009-06-261-6/+6
| | | | | | | | Fix the debug function prototypes to be correct even in the !CONFIG_DEBUG_FS case. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: use debugfs for events/reports dumpingJiri Kosina2009-06-121-2/+16
| | | | | | | | | | | | | | | | | | | This is a followup patch to the one implemeting rdesc representation in debugfs rather than being dependent on compile-time CONFIG_HID_DEBUG setting. The API of the appropriate formatting functions is slightly modified -- if they are passed seq_file pointer, the one-shot output for 'rdesc' file mode is used, and therefore the message is formatted into the corresponding seq_file immediately. Otherwise the called function allocated a new buffer, formats the text into the buffer and returns the pointer to it, so that it can be queued into the ring-buffer of the processess blocked waiting on input on 'events' file in debugfs. 'debug' parameter to the 'hid' module is now used solely for the prupose of inetrnal driver state debugging (parser, transport, etc). Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: use debugfs for report dumping descriptorJiri Kosina2009-06-121-13/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It is a little bit inconvenient for people who have some non-standard HID hardware (usually violating the HID specification) to have to recompile kernel with CONFIG_HID_DEBUG to be able to see kernel's perspective of the HID report descriptor and observe the parsed events. Plus the messages are then mixed up inconveniently with the rest of the dmesg stuff. This patch implements /sys/kernel/debug/hid/<device>/rdesc file, which represents the kernel's view of report descriptor (both the raw report descriptor data and parsed contents). With all the device-specific debug data being available through debugfs, there is no need for keeping CONFIG_HID_DEBUG, as the 'debug' parameter to the hid module will now only output only driver-specific debugging options, which has absolutely minimal memory footprint, just a few error messages and one global flag (hid_debug). We use the current set of output formatting functions. The ones that need to be used both for one-shot rdesc seq_file and also for continuous flow of data (individual reports, as being sent by the device) distinguish according to the passed seq_file parameter, and if it is NULL, it still output to kernel ringbuffer, otherwise the corresponding seq_file is used for output. The format of the output is preserved. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: hid debug from hid-debug.h to hid layerJiri Kosina2007-02-051-731/+18
| | | | | | | | | | | hid-debug.h contains a lot of code, and should not therefore be a header. This patch moves the code to generic hid layer as .c source, and introduces CONFIG_HID_DEBUG to conditionally compile it, instead of playing with #define DEBUG and including hid-debug.h. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: add missing RX, RZ and RY enum values to hid-debug outputSimon Budig2007-01-211-3/+4
| | | | | | | This trivial change adds some missing enum values to the hid-debug output. Signed-off-by: Simon Budig <simon@budig.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* [PATCH] Generic HID layer - code splitJiri Kosina2006-12-081-0/+757
The "big main" split of USB HID code into generic HID code and USB-transport specific HID handling. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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