Hello,
I am trying to communicate with a tape drive using ioctl and SCSI_IOCTL_SEND_COMMAND as ioctl(fd, SCSI_IOCTL_SEND_COMMAND, buffer);
I read that the buffer should be of the form :
Code:
struct sdata {
unsigned int inlen; [i] Length of data written to device
unsigned int outlen; [i] Length of data read from device
unsigned char cmd[x]; [i] SCSI command (6 <= x <= 16)
[o] Data read from device starts here
[o] On error, sense buffer starts here
unsigned char wdata[y]; [i] Data written to device starts here
};
I am not sure what value i should set outlen to as I want my function to be generic. So, I have set it to 255.
However, the Security Protocol out command ( LTO-4 encryption) is failing with SLES 9 32-bit and working with SLES 9 64-bit and SLES 10
Why is this?