want to access I/O ports through C

[paras sharma]

Hi all;
I want to know all possible ways to access I/O ports through
GCC.

[Walter Roberson]

In article <11**********************@h2g2000hsg.googlegroups. com>,
paras sharma <pa*********@yahoo.comwrote:

I want to know all possible ways to access I/O ports through
GCC.

If you want to know about facilities provided by GCC, you should
ask in a GCC newsgroup.

In standard C, the *only* way to access I/O ports is to fopen()
the port. If that isn't sufficient (e.g., because it doesn't
configure the port for the right speed), then what you want to do
can't be done in standard C without using implementation specific
extensions.

--
Okay, buzzwords only. Two syllables, tops. -- Laurie Anderson

[Clever Monkey]

paras sharma wrote:

Hi all;
I want to know all possible ways to access I/O ports through
GCC.

Better ask over at a newsgroup that talks about your platform specifics.

[David Wade]

"paras sharma" <pa*********@yahoo.comwrote in message
news:11**********************@h2g2000hsg.googlegro ups.com...

Hi all;
I want to know all possible ways to access I/O ports through
GCC.

You can't on a machine without i/o ports, e.g. M6800, IBM 360/370/390. You
probably can't from a user mode program on a properley secured operating
system e.g. Linux, VMS, or even on a moderately badly secured OS such as
Windows/XP or Vista....

[Eric Sosman]

paras sharma wrote:

Hi all;
I want to know all possible ways to access I/O ports through
GCC.

No, you don't! God's reason for creating the Universe was
to have the denizens thereof enumerate all the possible ways.
When the task is done, the Universe will have fulfilled its
purpose and God will have no reason to support its continued
existence.

(With apologies to A.C. Clarke.)

--
Eric Sosman
es*****@acm-dot-org.invalid

[Default User]

Eric Sosman wrote:

paras sharma wrote:

Hi all;
I want to know all possible ways to access I/O ports through
GCC.

No, you don't! God's reason for creating the Universe was
to have the denizens thereof enumerate all the possible ways.
When the task is done, the Universe will have fulfilled its
purpose and God will have no reason to support its continued
existence.

(With apologies to A.C. Clarke.)

Aw crap, the stars are going out again.


Brian