Typedefs starting with `m' in bsd/dev

• mode_sel_bd_t bsd/dev/scsireg.h:709
• mode_sel_data_t bsd/dev/scsireg.h:719
• mode_sel_hdr_t bsd/dev/scsireg.h:684
• modesel_parms_t bsd/dev/scsireg.h:727