yun@bu-ast.bu.edu (Joao Lin Yun) (06/05/91)
We have been having troubles getting this posted. If it gets through,
please reply via e-mail to Joao (yun@bu-ast.bu.edu) as he is not a regular
news reader. Thanks. David.
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I've been trying to talk to a Xylogics tape drive through a C program including
the command "ioctl". For a reason unknown to me this does not work. I keep
getting the error message: "Inappropriate ioctl for device"
Here is the relevant piece of code that I'm using:
struct mtop op;
*fd = open("/dev/nrmt0", O_RDWR);
op.mt_op = MTREW;
*status = ioctl(*fd, MTIOCTOP, &op);
if (*status < 0) {
perror("mtio:");
return;
The "open" command is successful (it returns a value of fd=8) but after that
any magtape opeartion that I try to do using "ioctl" gives an error:
"mtio: Inappropriate ioctl for device"
The poeople from whom I got the code guarantee me that the code is working fine
with their SCSI tape drive (with /dev/nrst8 instead of /dev/nrmt0). After
trying everything that seemed likely to be the problem, I have no idea of why
it doesn't work. Can someone help finding the problem and a its solution?
Thanks!
--
David Bradford Internet: bradford@bu-ast.bu.edu
Systems Manager BITnet: bradford@buasta
Astronomy Department SPAN: buasta::bradford
Boston University Phone: (617)353-4884