EPD IT8951 and fbdev support

Hi,

I do have a board with an EPD controller from ITE connected via USB. The
model is IT8951. Tt reports as an USB mass storage device and the whole
programming interface is based is based on SCSI commands.

While SCSI is quite convenient to control the device from userland (via
ioctl SG_IO), I don't know how to write a fbdev driver from it. Indeed,
I don't think it is possible to send SCSI commands from a fbdev driver.

On the other hand, I don't think there is some userland support either
to implement a fbdev driver (like FUSE for filesystems).

So I am asking here for ideas about how to get framebuffer support on a
such device, and maybe a little bit of guidance as well :)

Thanks in advance.

Simon