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Hi!

I've extracted the "inquiry" part of SANE, which hangs on my
computer. I'm using a Microtek scanner on an Adaptec 1502.
The symptoms are that the scanner reacts (it makes a noise), but the
ioctl never returns.

Could someone give me a hint how to further debug this problem?

Is the SCSI command okay?

Is the comment about the timeout correct? I've waited for more than a
minute without any reaction.

TIA,
 Thomas

-- 
Thomas Klausner - wiz@danbala.tuwien.ac.at
WWW-homepage: http://fbma.tuwien.ac.at/~e9325658/Welcome.html
Der Horizont vieler Menschen ist ein Kreis mit Radius Null -- und
das nennen sie ihren Standpunkt. (found on /.)

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#include <sys/ioctl.h>
#include <sys/param.h>
#include <sys/types.h>

#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/scsiio.h>

int
main()
{
    int fd;
    scsireq_t hdr;
    int ret;
    unsigned char src[] = { 0x12, 0x0, 0x0, 0x0, 0x60, 0x0 };
    unsigned char dst[100];
    size_t dst_size;

    fd = open("/dev/scanner", O_RDWR|O_EXCL);

    if (fd < 0)
    {
	fprintf(stderr, "can't open device: %s", strerror(errno));
	return 1;
    }

    memset (&hdr, 0, sizeof (hdr));
    memcpy (hdr.cmd, src, 6);

    dst_size = sizeof(dst);
    hdr.flags = SCCMD_READ;
    hdr.databuf = dst;
    hdr.datalen = dst_size;
    /* SANE comment says, next line sets a 1 minute timeout */
    hdr.timeout = 60000;
    hdr.cmdlen = 6;
    hdr.senselen = sizeof (hdr.sense);

    ret = ioctl(fd, SCIOCCOMMAND, &hdr);

    if (ret < 0)
    {
	fprintf(stderr, "ioctl failed: %s", strerror(errno));
	return 1;
    }

    close(fd);

    return 0;
}
       

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