UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

tty: Document defunct ASYNC_* bits in uapi header 

Note the serial_struct flags for which the kernel ignores and performs
no action. The flags cannot be removed since they form part of the
userspace interface via the TIOCSSERIAL/TIOCGSERIAL ioctls.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2014-10-16 16:54:22 -04:00 committed by Greg Kroah-Hartman
parent 904326ecac
commit 352f86187e
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
include/uapi/linux/tty_flags.h
View File

@ -8,6 +8,7 @@
* Define ASYNCB_* for convenient use with {test,set,clear}_bit. * Define ASYNCB_* for convenient use with {test,set,clear}_bit.
* *
* Bits [0..ASYNCB_LAST_USER] are userspace defined/visible/changeable * Bits [0..ASYNCB_LAST_USER] are userspace defined/visible/changeable
* [x] in the bit comments indicates the flag is defunct and no longer used.
*/ */
#define ASYNCB_HUP_NOTIFY 0 /* Notify getty on hangups and closes #define ASYNCB_HUP_NOTIFY 0 /* Notify getty on hangups and closes
* on the callout port */ * on the callout port */
@ -19,15 +20,15 @@
#define ASYNCB_SKIP_TEST 6 /* Skip UART test during autoconfiguration */ #define ASYNCB_SKIP_TEST 6 /* Skip UART test during autoconfiguration */
#define ASYNCB_AUTO_IRQ 7 /* Do automatic IRQ during #define ASYNCB_AUTO_IRQ 7 /* Do automatic IRQ during
* autoconfiguration */ * autoconfiguration */
#define ASYNCB_SESSION_LOCKOUT 8 /* Lock out cua opens based on session */ #define ASYNCB_SESSION_LOCKOUT 8 /* [x] Lock out cua opens based on session */
#define ASYNCB_PGRP_LOCKOUT 9 /* Lock out cua opens based on pgrp */ #define ASYNCB_PGRP_LOCKOUT 9 /* [x] Lock out cua opens based on pgrp */
#define ASYNCB_CALLOUT_NOHUP 10 /* Don't do hangups for cua device */ #define ASYNCB_CALLOUT_NOHUP 10 /* [x] Don't do hangups for cua device */
#define ASYNCB_HARDPPS_CD 11 /* Call hardpps when CD goes high */ #define ASYNCB_HARDPPS_CD 11 /* Call hardpps when CD goes high */
#define ASYNCB_SPD_SHI 12 /* Use 230400 instead of 38400 bps */ #define ASYNCB_SPD_SHI 12 /* Use 230400 instead of 38400 bps */
#define ASYNCB_LOW_LATENCY 13 /* Request low latency behaviour */ #define ASYNCB_LOW_LATENCY 13 /* Request low latency behaviour */
#define ASYNCB_BUGGY_UART 14 /* This is a buggy UART, skip some safety #define ASYNCB_BUGGY_UART 14 /* This is a buggy UART, skip some safety
* checks. Note: can be dangerous! */ * checks. Note: can be dangerous! */
#define ASYNCB_AUTOPROBE 15 /* Port was autoprobed by PCI or PNP code */ #define ASYNCB_AUTOPROBE 15 /* [x] Port was autoprobed by PCI/PNP code */
#define ASYNCB_MAGIC_MULTIPLIER 16 /* Use special CLK or divisor */ #define ASYNCB_MAGIC_MULTIPLIER 16 /* Use special CLK or divisor */
#define ASYNCB_LAST_USER 16 #define ASYNCB_LAST_USER 16