txMode           2542 drivers/usb/serial/keyspan.c 		msg.txMode = TXMODE_DMA;
txMode           2545 drivers/usb/serial/keyspan.c 		msg.txMode = TXMODE_BYHAND;
txMode             69 drivers/usb/serial/keyspan_usa90msg.h 		txMode,			// TXMODE_DMA or TXMODE_BYHAND