Defined in 4 files as a macro:
- drivers/usb/serial/keyspan_usa26msg.h, line 253 (as a macro)
- drivers/usb/serial/keyspan_usa28msg.h, line 198 (as a macro)
- drivers/usb/serial/keyspan_usa49msg.h, line 277 (as a macro)
- drivers/usb/serial/keyspan_usa67msg.h, line 247 (as a macro)