Re: "soft" USB keyboard and mouse driver

[Alessio Sangalli <alesan@manoweb.com>]

Jiri Kosina wrote:

> I am not really sure I understand very well. So you have the device the 
> provides some "crippled" implementation of USB and provides some HID 
> devices on top of it, and you would like to have this compliant with the 
> kernel Input/HID infrastructure?

Yeah we can define it that way. It basically provides a low-speed USB
port to chips that do not have a USB controller and PHY. Yes, it sounds
disgusting, but sometimes it's the only way to use USB input devices to
embedded systems that do not have USB connectivity.

> If the devices are really HID (i.e. the protocol on the wire is proper HID 
> as defined by HID specification), you'd only need to implement a 
> specialized "transport" HID code for this transport protocol, and let the 
> HID core do the rest.

Well those are standard USB keyboard and mice, so what goes on the wire
is what is expected by those devices.


> Currently there are implementations for USB and Bluetooth which you can 
> look at.

Could you point me to a more specific example?

Thank you
Alessio