[Lcd4linux-devel] WG: USB based hd44780 units ...

[<li...@ha...>]

Hi list,

i have a simple question regarding some of the supported usb devices and
their drivers. I am currently building a small and cheap (about $5 easy
to
obtain standard parts) diy usb interface for the hd44780. I am now
wondering why
drivers for similar devices (e.g. the BWCT and USBLCD) aren't included
into the hd44780. Is there any reason these devices are not included as
interface drivers for the generic hd44780? This would have the advatage,
that all those special case handlers from this driver would be available
to the usb
devices as well.

I am thinking of making my interface compatible to the bwct (and perhaps
add some more features like e.g. adjustable backlight and one or two
input
buttons). I'd now rather have this supported by the hd44780 driver with
e.g. a setup like
this:

Display <name> {
    Driver 'HD44780'
    Model 'generic'
    Bus 'USB'
    Interface 'bwct'
    Port 'VENDORID;DEVICEID'
..

The port setting is optional and the default is the vendor and device id
of
the bwct interface. But making it configurable would allow for compatible
devices with different vendor and device ids.

What do you think about this?

Regards,
  Till