On Fri, 3 May 2002 01:30, Manoj Sharma wrote:
> Sorry, I had really not understood what you meant by "hiddev".
I still don't think you understand what HID is - see below.
> The device is actually a panel having a LCD controller and a touchscreen
> (single device address). So I planned to provide
Am Donnerstag, 2. Mai 2002 14:20 schrieb Manoj Sharma:
> Brad,
>
> It is a HID device.
> I need to run X based applications over this LCD display.
> Since X server uses /dev/fb to write to the frame buffer, I thought of
> writing a frame buffer driver that reads the buffer (allocated by the
> driv
> This doesn't make any sense - perhaps you don't understand what I meant by
> "hiddev".
> Linux support is layered. The host controller talks to the PCI hardware. In
> turn, the device driver talks to the host controller. The device driver for
> HID devices is called hid. It exports two inte
sorry to jump in here, but (without knowing any details about your
hardware - you didn't give any) are you sure you need to send actual
image data over the USB bus?
Most LCD displays (full displays, that is) that I've seen send the
actual image (screen) data over the normal (i.e. dedicated extre
On Thu, 2 May 2002 23:02, Manoj Sharma wrote:
> On Thu, 2 May 2002, Brad Hards wrote:
> > Perhaps you write a userspace driver that talks to hiddev?
>
> No, I think I need to write a kernel module that talks to the hiddev. Then
> only I can use the /dev/fb from user space.
This doesn't make any se
On Thu, 2 May 2002, Brad Hards wrote:
> On Thu, 2 May 2002 22:20, Manoj Sharma wrote:
> > Brad,
> >
> > It is a HID device.
> > I need to run X based applications over this LCD display.
> The performance isn't going to be that great...
That's true.
> > Since X server uses /dev/fb to write to
On Thu, 2 May 2002 22:20, Manoj Sharma wrote:
> Brad,
>
> It is a HID device.
> I need to run X based applications over this LCD display.
The performance isn't going to be that great...
> Since X server uses /dev/fb to write to the frame buffer, I thought of
> writing a frame buffer driver that r
Brad,
It is a HID device.
I need to run X based applications over this LCD display.
Since X server uses /dev/fb to write to the frame buffer, I thought of
writing a frame buffer driver that reads the buffer (allocated by the
driver) and passes its contents to the the LCD controller over USB.
On Thu, 2 May 2002 21:45, Manoj Sharma wrote:
> Hi,
>
> I wanted to write driver for an USB based LCD display.
> Is there any USB based open source LCD display driver or frame buffer
> driver available?
What sort of device? Is it a HID device or a full video device?
I've done a driver (in userspac
