_tu 195 drivers/net/wireless/ath/ath9k/hw.h #define TU_TO_USEC(_tu) ((_tu) << 10) _tu 248 drivers/usb/phy/phy-tahvo.c static irqreturn_t tahvo_usb_vbus_interrupt(int irq, void *_tu) _tu 250 drivers/usb/phy/phy-tahvo.c struct tahvo_usb *tu = _tu;