diff options
Diffstat (limited to 'include/uapi/linux/tty_flags.h')
| -rw-r--r-- | include/uapi/linux/tty_flags.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/include/uapi/linux/tty_flags.h b/include/uapi/linux/tty_flags.h index eefcb483a2c0..fae4864737fa 100644 --- a/include/uapi/linux/tty_flags.h +++ b/include/uapi/linux/tty_flags.h @@ -6,27 +6,31 @@ * shared by the tty_port flags structures. * * Define ASYNCB_* for convenient use with {test,set,clear}_bit. + * + * 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 * on the callout port */ #define ASYNCB_FOURPORT 1 /* Set OU1, OUT2 per AST Fourport settings */ #define ASYNCB_SAK 2 /* Secure Attention Key (Orange book) */ -#define ASYNCB_SPLIT_TERMIOS 3 /* Separate termios for dialin/callout */ +#define ASYNCB_SPLIT_TERMIOS 3 /* [x] Separate termios for dialin/callout */ #define ASYNCB_SPD_HI 4 /* Use 56000 instead of 38400 bps */ #define ASYNCB_SPD_VHI 5 /* Use 115200 instead of 38400 bps */ #define ASYNCB_SKIP_TEST 6 /* Skip UART test during autoconfiguration */ #define ASYNCB_AUTO_IRQ 7 /* Do automatic IRQ during * autoconfiguration */ -#define ASYNCB_SESSION_LOCKOUT 8 /* Lock out cua opens based on session */ -#define ASYNCB_PGRP_LOCKOUT 9 /* Lock out cua opens based on pgrp */ -#define ASYNCB_CALLOUT_NOHUP 10 /* Don't do hangups for cua device */ +#define ASYNCB_SESSION_LOCKOUT 8 /* [x] Lock out cua opens based on session */ +#define ASYNCB_PGRP_LOCKOUT 9 /* [x] Lock out cua opens based on pgrp */ +#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_SPD_SHI 12 /* Use 230400 instead of 38400 bps */ #define ASYNCB_LOW_LATENCY 13 /* Request low latency behaviour */ #define ASYNCB_BUGGY_UART 14 /* This is a buggy UART, skip some safety * checks. Note: can be dangerous! */ -#define ASYNCB_AUTOPROBE 15 /* Port was autoprobed by PCI or PNP code */ -#define ASYNCB_LAST_USER 15 +#define ASYNCB_AUTOPROBE 15 /* [x] Port was autoprobed by PCI/PNP code */ +#define ASYNCB_MAGIC_MULTIPLIER 16 /* Use special CLK or divisor */ +#define ASYNCB_LAST_USER 16 /* Internal flags used only by kernel */ #define ASYNCB_INITIALIZED 31 /* Serial port was initialized */ @@ -57,8 +61,11 @@ #define ASYNC_LOW_LATENCY (1U << ASYNCB_LOW_LATENCY) #define ASYNC_BUGGY_UART (1U << ASYNCB_BUGGY_UART) #define ASYNC_AUTOPROBE (1U << ASYNCB_AUTOPROBE) +#define ASYNC_MAGIC_MULTIPLIER (1U << ASYNCB_MAGIC_MULTIPLIER) #define ASYNC_FLAGS ((1U << (ASYNCB_LAST_USER + 1)) - 1) +#define ASYNC_DEPRECATED (ASYNC_SESSION_LOCKOUT | ASYNC_PGRP_LOCKOUT | \ + ASYNC_CALLOUT_NOHUP | ASYNC_AUTOPROBE) #define ASYNC_USR_MASK (ASYNC_SPD_MASK|ASYNC_CALLOUT_NOHUP| \ ASYNC_LOW_LATENCY) #define ASYNC_SPD_CUST (ASYNC_SPD_HI|ASYNC_SPD_VHI) |