QTD_STS_PING      304 drivers/usb/host/ehci.h #define	QTD_STS_PING	(1 << 0)	/* issue PING? */
QTD_STS_PING      337 drivers/usb/host/fotg210.h #define	QTD_STS_PING	(1 << 0)	/* issue PING? */
QTD_STS_PING      250 drivers/usb/host/oxu210hp-hcd.c #define	QTD_STS_PING	(1 << 0)	/* issue PING? */