Defined in 4 files as a macro:

• Documentation/video4linux/bttv/PROBLEMS, line 1087 (as a macro)
• drivers/Makefile, line 1373 (as a macro)
• drivers/char/busmouse.c, line 1326 (as a macro)
• include/asm-i386/siginfo.h, line 1284 (as a macro)

Referenced in 2 files:

• Documentation/video4linux/bttv/ICs, line 485
• drivers/isdn/avmb1/capi.c, line 224