Yet another way.
I used
#include
...
io_fd = open("/dev/console", O_RDWR, 0);
ioctl(io_fd, KDENABIO, 0);
and
ioctl(io_fd, KDDISABIO, 0);
to turn it off again.
Is there a "right" way of doing it? Linux has a iopl call that sets the
i/o privilege level, it seems much easier and at least bette
* Leif Neland <[EMAIL PROTECTED]> [000425 12:24] wrote:
> I'd like to turn on a relay to the power for my laserprinter 3 rooms away
> where the server is located.
>
> I have an i/o board with a 8255 24 bit i/o port.(IIRC)
>
> So I wrote a simple userland program to do inb/outb, but it dumped cor
On 25/04, Leif Neland wrote:
| I guess I have these options:
| A: write a driver/kernel module to access the port.
| B: use an extra parallel port. (I use 2 at the moment)
| C: use a serial port; I have 3-4 available.
D: use i386_set_ioperm to get access to the I/O port space
To Unsubscribe:
I think you need to have a fd open on /dev/io to do inb/outb.
Jason Young
Access US(tm) Chief Network Engineer
> -Original Message-
> From: Leif Neland [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, April 25, 2000 1:51 PM
> To: [EMAIL PROTECTED]
> Subject: Turning on a relay.
>
>
> I'd
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