Re: X, tin questions

[is%beverly.rhein.de@localhost (Ignatios Souvatzis)]

Hi Charlie,

> The X faq says that the Retina Z2 board is not supported in the X11R6.1
> server.  There is a slot for it, however (.../grf1), and there is a
> reference to using MAKEDEV to build a driver for an unsupported board.  
> 
> Q:     Can MAKEDEV be used to build a driver for Retina Z2/grf1? 

1) MAKEDEV does NOT build device drivers.
it only creates handles in the file system used to access devices.

2) there already is a device driver for the Retina Z2. It provides 
console terminal support (ite; -> /dev/ttye1) and normalized color map
and video mode setting functions (grf1). Additionally, it allows to
mmap() the graphics boards registers and frame buffer window. However,
as this frame buffer is only accessible partially at each given time,
the X server has to know how to handle it; this is why Xamiga doesnt
work with it.

If you want an X server for the Z2, get the old Xamiga-retina2 or however it
is called exactly, and, maybe, recompile it, or integrate the hardware
dependant parts of it with the X11R6.1 (or 3) X server sources and
keyboard/mouse routines.

        -is
        Ignatios Souvatzis