Messages in this thread | | | Subject | Re: User-space Keyboard input? | From | Marcel Holtmann <> | Date | Fri, 23 Jul 2004 16:52:35 +0200 |
| |
Hi Mario,
> >> I'm working on BRLTTY[1], a user-space daemon which handles braille displays > >> on UNIX platforms. One of our display drivers recently gained the ability > >> to receive (set 2) scancodes from a keyboard connected directly to the display. > >> This is a very cool feature, since the display in question has > >> a bluetooth interface, making it effectively into a complete wireless > >> terminal (input and output through the same connection). > > > > tell me more about this Bluetooth device. > > Its a Braille Star 40 from HandyTech. Originally sold, the device had two > alternative ports, serial or USB. They recently offered an additional > bluetooth module. I don't really know what you want to know though :-).
what kind of profiles do this Bluetooth module support? Is it a HID compatible device or do it uses a vendor specific protocol? Do you tested it with Linux?
> >> However, this creates some problems. First of all, we now have to deal > >> with keyboard layouts. Additionally, since we currently insert via > >> TIOCSTI I think this might get problematic as soon as one switches > >> to an X Windows console and modifiers come into play. > >> > >> Does anyone know (and can point me into the right direction) if > >> Linux has some mechanism to allow for user-space keyboard data to > >> be processed by the kernel as if it were received from the system > >> keyboard? I.e., keyboard layout would be handled by the same > >> mapping which is configured for the system. > > > > Take a look at the user level driver support (uinput). > Yup, thats it, thanks. Now I just need to find some example code on how > to use it :-).
The BlueZ CVS repository utils2 contains the old bthid code that makes use of the uinput kernel module.
Regards
Marcel
- 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/
| |