Attachment 65305 Details for Bug 145147

SG_IO variant of the test program

getevent.c (text/x-csrc), 1.05 KB, created by Jens Axboe on 2006-01-26 19:41:20 UTC

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Filename:

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Creator: Jens Axboe

Created: 2006-01-26 19:41:20 UTC

Size: 1.05 KB

patch

obsolete

>#include <stdio.h>
>#include <unistd.h>
>#include <fcntl.h>
>#include <string.h>
>#include <sys/ioctl.h>
>#include <scsi/sg.h>
>
>void hexdump(unsigned char *b, int len)
>{
>	int i;
>	for (i = 0; i < len; i++)
>		printf("%02x", b[i]);
>
>	printf("\n");
>}
>
>int do_getev(int fd)
>{
>	unsigned char cdb[10] = { 0x4a, 1, 0, 0, 16, 0, 0, 0, 8, };
>	unsigned char buffer[8];
>	struct sg_io_hdr h;
>	int ret;
>
>	memset(buffer, 0, sizeof(buffer));
>	memset(&h, 0, sizeof(h));
>
>	h.interface_id = 'S';
>	h.cmd_len = sizeof(cdb);
>	h.dxfer_direction = SG_DXFER_FROM_DEV;
>	h.dxfer_len = sizeof(buffer);
>	h.dxferp = buffer;
>	h.cmdp = cdb;
>	h.timeout = 5000;
>
>	ret = ioctl(fd, SG_IO, &h);
>	if (ret) {
>		printf("SG_IO failed\n");
>		return -1;
>	}
>
>	printf("status %d\n", h.status);
>	if (!h.status)
>		hexdump(buffer, sizeof(buffer));
>	return h.status;
>}
>
>int main(int argc, char *argv[])
>{
>	int fd;
>
>	if (argc < 2) {
>		fprintf(stderr, "%s: device\n", argv[0]);
>		return 1;
>	}
>
>	fd = open(argv[1], O_RDONLY | O_NONBLOCK);
>	if (fd == -1) {
>		perror("open");
>		return 1;
>	}
>
>	do_getev(fd);
>
>	close(fd);
>	return 0;
>}

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Attachments on bug 145147: 65305