CHIP_SK          1474 drivers/tty/mxser.c 				outb(CHIP_CS | CHIP_DO | CHIP_SK, port);	/* A? bit of read */
CHIP_SK          1477 drivers/tty/mxser.c 				outb(CHIP_CS | CHIP_SK, port);	/* A? bit of read */
CHIP_SK          1484 drivers/tty/mxser.c 			outb(CHIP_CS | CHIP_SK, port);