Handle sg_scsi_reset
int scsi_nonblockable_ioctl(struct scsi_device * sdev, int cmd, void __user * arg, int ndelay);
sdev
scsi device receiving ioctl
cmd
Must be SC_SCSI_RESET
arg
pointer to int containing SG_SCSI_RESET_{DEVICE,BUS,HOST}
ndelay
file mode O_NDELAY flag