8 Jan
2007
8 Jan
'07
9:31 p.m.
Adam Sampson writes:
A "FILE *" is not a file descriptor -- libc
functions like fopen,
fread, fprintf etc. work with FILE *s, and system calls like open,
read and ioctl work with integer file descriptors. You can use the
fileno function to get the file descriptor that the FILE * is using,
so change "audio_fd" to "fileno(audio_fd)" in that ioctl call, and
it
should be a bit happier.
Thank you. I figured I was doing something dumb like
that and yes, I believe I have seen warnings pertaining to what
you are saying, here, so it makes lots of sense.
The compiler should be complaining about you converting a pointer to
an integer when you compile that ioctl call as it currently stands;
it's always a good idea to use the -Wall compiler flag and pay careful
attention to the warnings it produces.
Again, thanks.