Fun with Logitech bluetooth keyboard (diNovo Edge)...

[Rui Paulo]

Maksim Yevmenkin wrote:
> On Wed, May 7, 2008 at 4:07 PM, Alexander Leidinger
> <Alexander at leidinger.net> wrote:
>> Quoting "Maksim Yevmenkin" <maksim.yevmenkin at gmail.com> (Wed, 7 May 2008 13:05:02 -0700):
>>
>>> On Wed, May 7, 2008 at 10:24 AM, Alexander Leidinger
>>> <Alexander at leidinger.net> wrote:
>>>> Hi,
>>>>
>>>>  I bought a keyboard with an integrated touchpad from logitech. Just
>>>>  plugging in the BT-dongle gives an usb hub with ums and ukbd.
>>>>  Unfortunately the ums doesn't work for me yet (problem in a separate
>>>>  mail to usb@).
>>>>
>>>>  I googled a litte bit around and found a posting here
>>>>  (http://lists.freebsd.org/mailman/htdig/freebsd-bluetooth/2006-December/000824.html)
>>>>  which contains a program which puts the device into hci mode (by
>>>>  accessing /dev/uhidX), so that I can use the HID devices with the
>>>>  FreeBSD bluetooth stack directly. I haven't tried this yet (I would
>>>>  have to remove ukbd and ums from the kernel...).
>>>>
>>>>  Is there the possibility to get this hid2hci feature in our userland
>>>>  (or into the kernel controllable via a sysctl)? I would would be good
>>>>  to have this functionality at boot (in the kernel it would would allow
>>>>  to have ukbd available while still being able to put the device into
>>>>  hci mode).
>>> well, someone already ported hid2hci.
>>>
>>> http://lists.freebsd.org/pipermail/freebsd-bluetooth/2007-July/000989.html
>>>
>>> is a good starting point. i do not think that using sysctl is good
>> It doesn't make sense to have something like this in the base system?
> 
> yes, it does. however, one should be careful. original tool is under
> gpl. there is a lot of code that looks very similar (if not identical)
> to gpl version. also, at least for csr chips, the utility contain some
> information about csr chips that they may or may not want be released.
> i realize that this information is already public (due to gpl tool)
> but you never know...  i think port would be better solution for now.

Then that's a problem for me because I wrote the utility. IANAL, but I 
don't think there's a problem here, because:
* The utility I wrote reads a file with matching USB IDs. The original 
one has a list hardcoded into the program
* I don't use libusb, I call ioctl()'s specific to the BSD USB stack
* I didn't copy any code.
* I don't think my program can be considered a derived work

There are several open source tools out there that are similar, but have 
incompatible licenses. This is another case.

Also, the author of hid2hci reads this list. If he considered that I 
have used code from his utility, he would probably have tried to 
convince me to change it, or even a threat to sue. (I don't know him, 
I'm just saying out loud what could happen.)

Either way, I'm willing to do a port.

Thanks,
-- 
Rui Paulo