From: 李玮 <coffeeyu531@126.com>
To: linux-omap-open-source@linux.omap.com
Subject: i2c for omap5912,help me
Date: Fri, 8 Dec 2006 14:51:12 +0800 [thread overview]
Message-ID: <004401c71a95$3faead50$420aa8c0@yfliwei> (raw)
In-Reply-To: 20061130231453.48C468062D@linux.omap.com
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Hi ,
I'm using an omap5912 and would like to light the led D3
on the board thru the i2c driver.
Now I can not see nothing in /proc/sys/dev/ and /dev,
but I can see there is something about
i2c in /proc/bus/. I can not open the file,Could there
be something wrong with my opening the dev file ? I hope
there is someone who knows my problem? Thanks in
advance.
Below are the debug msg aswell as the code.
int adapter_nr = 0;
int file;
char filename[20];
sprintf(filename,"/dev/i2c-%d",adapter_nr);
if ((file = open(filename,O_RDWR)) < 0) {
printf("Error Opening File\n");
exit(1);
}
the file value is allways 1,Who can help me?Thanks!
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next parent reply other threads:[~2006-12-08 6:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20061130231453.48C468062D@linux.omap.com>
2006-12-08 6:51 ` 李玮 [this message]
2006-12-08 18:04 ` i2c for omap5912,help me Ishigami, Tatsuya
2006-12-10 7:16 ` David Brownell
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