154 #define	SENSE_ECLASS(sn)	(((sn)->sn_vcc >> 4) & 7)  argument
155 #define	SENSE_ECODE(sn)		((sn)->sn_vcc & 0xf)  argument
156 #define	SENSE_ISXSENSE(sn)	(SENSE_ECLASS(sn) == 7)  argument
159 #define	RSENSE_LVALID(sn)	((sn)->sn_vcc & 0x80)  argument
160 #define	RSENSE_VU(sn)		((sn)->sn_var[0] >> 5)  argument
161 #define	RSENSE_LBA(sn) \  argument
165 #define	XSENSE_ISSTD(sn)	(SENSE_ECODE(sn) == 0)  argument
167 #define	XSENSE_IVALID(sn)	((sn)->sn_vcc & 0x80)  argument
168 #define	XSENSE_SEG(sn)		((sn)->sn_var[0])  argument
169 #define	XSENSE_FM(sn)		((sn)->sn_var[1] & 0x80) /* filemark */  argument
170 #define	XSENSE_EOM(sn)		((sn)->sn_var[1] & 0x40) /* end of media */  argument
171 #define	XSENSE_ILI(sn)		((sn)->sn_var[1] & 0x20) /* incor length ind */  argument
172 #define	XSENSE_KEY(sn)		((sn)->sn_var[1] & 0x0f) /* sense key */  argument
173 #define	XSENSE_INFO(sn) \  argument
176 #define	XSENSE_ADDL(sn)		((sn)->sn_var[6])	/* add'l sense len */  argument