Subject: Re: ahb* at isa?
To: Gary D. Duzan <gary@wheel.tiac.net>
From: Gary D. Duzan <gary@wheel.tiac.net>
List: port-i386
Date: 01/29/1995 09:30:03
In Message ,
   "Gary D. Duzan" <gary@wheel.tiac.net> wrote:

=>   I didn't do a ktrace before, but I just did one now. This is
=>the part that appears relevant:
=>
=>   343 XF86_S3  CALL  open(0x3d594,0x2,0x2)
=>   343 XF86_S3  NAMI  "/dev/mem"
=>   343 XF86_S3  RET   open -1 errno 1 Operation not permitted
=>   343 XF86_S3  CALL  mmap(0,0x20000,0x3,0,0x4,0,0)
=>   343 XF86_S3  RET   mmap -1 errno 22 Invalid argument
=>
   Sorry, I guess those first few lines don't really apply, and
I left out the open info and some apparently relevant ioctls:

   404 XF86_S3  CALL  open(0x3c022,0x6,0)
   404 XF86_S3  NAMI  "/dev/vga"
   404 XF86_S3  RET   open 4
   404 XF86_S3  CALL  ioctl(0x4,TIOCCBRK,0)
   404 XF86_S3  RET   ioctl 0
   404 XF86_S3  CALL  ioctl(0x4,0xc0185671 ,0xf7bfdb20)
   404 XF86_S3  RET   ioctl -1 errno 25 Inappropriate ioctl for device
   [ ... ]
   404 XF86_S3  CALL  ioctl(0x4,TIOCSDTR,0)
   404 XF86_S3  RET   ioctl 0
   [ ... ]
   404 XF86_S3  CALL  mmap(0,0x20000,0x3,0,0x4,0,0)
   404 XF86_S3  RET   mmap -1 errno 22 Invalid argument

If you need any more info, just let me know.

                                      Gary D. Duzan
                         Humble Practitioner of the Computer Arts