NAME

/dev/tiga0 − TIGA (Amiga A2410 graphics board) hardware access device

SYNOPSIS

int fd;
fd = open("/dev/tiga0", mode);

DESCRIPTION

/dev/tiga0 is a special file which allows access to the first Amiga A2410 graphics board in the system. 

This driver will eventually provide a medium-level interface to the TIGA (Texas Instruments Graphics Architecture) operating system of the TI 34010 processor. 

In this temporary implementation, /dev/tiga0 is similar to /dev/mem (see mem(7)) except that only the address range 0x0000-0xffff can be accessed.  This range corresponds to the 64K address space occupied by the board, and contains the interface registers for communication with the TI 34010 processor. 

/dev/tiga1, etc., correspond to the second, etc., boards in the system.

FILES

/dev/tiga? - special files for accessing TIGA boards

SEE ALSO

open(2), close(2), read(2), write(2), mmap(2), mem(7). 

WARNING

Although this interface provides some protection, it is possible to crash the machine or completely mangle all video output, among other potential disasters.  The permissions of /dev/tiga∗ should reflect this; only privileged, trusted programs will use this interface. 

Amiga Unix  —  Last change: PRELIMINARY