On Jun 21 10:47, Nicolas Boudin wrote:
>
> Hello,
>
> I get strange results when trying to create device files with this program:
>
> #include <sys/stat.h>
>
> int main (void)
> {
> int major, minor;
> dev_t dev;
>
> major = 5;
> minor = 1;
> dev = (major << 8) | minor;
>
> mknod ("test", S_IFCHR | 0666, dev);
>
> return 0;
> }
>
> After running it, I get:
>
> # ls -al test
> crw-rw-rw- 1 NBoudin mkgroup-l-d 0, 1281 Jun 21 10:44 test
>
> However, with "mknod test2 c 5 1":
> crw-rw-rw- 1 NBoudin mkgroup-l-d 5, 1 Jun 21 10:44 test2
>
> Why do I get this result?
You are making invalid assumptions. Have a look into
/usr/include/cygwin/types.h and /usr/include/sys/sysmacros.h
and see the light. After that, make a mental note:
"Never create a device number other than by using the makedev macro"
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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