QT_OPEN_CLOSE_CHANNEL 368 drivers/usb/serial/quatech2.c QT_OPEN_CLOSE_CHANNEL, QT_OPEN_CLOSE_CHANNEL 440 drivers/usb/serial/quatech2.c QT_OPEN_CLOSE_CHANNEL, QT_OPEN_CLOSE_CHANNEL 305 drivers/usb/serial/ssu100.c QT_OPEN_CLOSE_CHANNEL,