Defined in 2 files as a macro:

• drivers/usb/serial/quatech2.c, line 45 (as a macro)
• drivers/usb/serial/ssu100.c, line 35 (as a macro)

Referenced in 2 files:

• drivers/usb/serial/quatech2.c, line 281
• drivers/usb/serial/ssu100.c, line 231