Symbol: keyspan_wait_tx_drain
usr/src/uts/common/io/usb/clients/usbser/usbser_keyspan/keyspan_dsd.c
129
static int keyspan_wait_tx_drain(keyspan_port_t *, int);
usr/src/uts/common/io/usb/clients/usbser/usbser_keyspan/keyspan_dsd.c
1495
if (keyspan_wait_tx_drain(kp, 0) != USB_SUCCESS) {