Re: [Bluez-devel] Re: Jumpy cursor with Wacom Graphire Bluetooth

[Robert Siemer <Robert.Siemer@backsla.sh>]

Hi Marcel!

> maybe the HID inside the Wacom is broken and needs a special quirk. This
> wouldn't be the first time. However also the Linux HID code can be at
> fault here. You still haven't send in enough information about that
> device to tell.
> 
> Use "hcitool info..." and "sdptool browse --raw" to get some more
> information about the device.

panorama:/etc/udev# sdptool browse --raw
Inquiring ...


Should there be something? ("local" or the tablet address do the same:
empty)

panorama:/etc/udev# hcitool info 00:13:C2:00:11:2C
Requesting information ...
        BD Address:  00:13:C2:00:11:2C
        Device Name: WACOM Pen Tablet
        LMP Version: 1.2 (0x2) LMP Subversion: 0x5df
        Manufacturer: Cambridge Silicon Radio (10)
        Features: 0xff 0xff 0x8f 0x78 0x18 0x18 0x00 0x80
                <3-slot packets> <5-slot packets> <encryption> <slot offset> 
                <timing accuracy> <role switch> <hold mode> <sniff mode> 
                <park state> <RSSI> <channel quality> <SCO link> <HV2 packets> 
                <HV3 packets> <u-law log> <A-law log> <CVSD> <paging scheme> 
                <power control> <transparent SCO> <broadcast encrypt> 
                <enhanced iscan> <interlaced iscan> <interlaced pscan> 
                <inquiry with RSSI> <AFH cap. slave> <AFH class. slave> 
                <AFH cap. master> <AFH class. master> <extended features> 


My questions were:
 -Who is making the connectinon? (hidp kernel module?)
 -Who can/could influence it's outcome? (hidd userspace daemon? Plays
  hcid an important role?)
 -Has the latency thing something to do with it?
 -Which spec should I first dig into - Bluetooth or HID?



Thanks,
		Robert


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