Defined in 3 files as a macro:

• sys/arm/at91/if_macbreg.h, line 36 (as a macro)
• sys/dev/ep/if_epreg.h, line 248 (as a macro)
• sys/dev/vx/if_vxreg.h, line 235 (as a macro)

Referenced in 3 files:

• sys/arm/at91/if_macb.c, line 588
• sys/dev/ep/if_ep.c, line 447
• sys/dev/vx/if_vx.c, line 264