UART_LSR_THRE      25 arch/powerpc/boot/ns16550.c #define UART_LSR_THRE	0x20	/* Transmit-hold-register empty */
UART_LSR_THRE     135 include/uapi/linux/serial_reg.h #define UART_LSR_THRE		0x20 /* Transmit-hold-register empty */