xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

serial: uapi: Declare all userspace-visible io types

Browse Source 
ioctl(TIOCGSERIAL|TIOCSSERIAL) report and can change the port->iotype.
UART drivers use the UPIO_* definitions, but the uapi header defines
parallel values and userspace uses these parallel values for ioctls;
thus the userspace values are definitive.

Define UPIO_* iotypes in terms of the uapi defines, SERIAL_IO_*;
extend the uapi defines to include all values in use by the serial
core.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley
2015-03-01 10:24:28 -05:00
committed by Greg Kroah-Hartman
parent 2bb785169e
commit 647f162b8e
2 changed files with 11 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/uapi/linux/serial.h
View File

@@ -65,6 +65,10 @@ struct serial_struct {
#define SERIAL_IO_PORT 0
#define SERIAL_IO_HUB6 1
#define SERIAL_IO_MEM 2
#define SERIAL_IO_MEM32 3
#define SERIAL_IO_AU 4
#define SERIAL_IO_TSI 5
#define SERIAL_IO_MEM32BE 6
#define UART_CLEAR_FIFO 0x01
#define UART_USE_FIFO 0x02