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authorJohn Stultz <john.stultz@linaro.org>2013-09-26 12:05:54 -0700
committerJohn Stultz <john.stultz@linaro.org>2013-09-26 12:05:54 -0700
commit17deb9c2db01c7813611291d251d8c7dbdfd3c9d (patch)
tree6e023c0be7c64de84dd51a671eb09c5c82b56615 /include/linux/tty_ldisc.h
parentf4e6e1ea19737077d958f2bc6c196eb579d97544 (diff)
parent389e067032fbb96e439abafae848dd447e4cafb4 (diff)
Merge remote-tracking branch 'tip/timers/core' into fordlezcano/3.13/sched-clock64-conversion
Update to tip/timers/core and resolve minor conflict. Conflicts: drivers/clocksource/samsung_pwm_timer.c Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'include/linux/tty_ldisc.h')
-rw-r--r--include/linux/tty_ldisc.h16
1 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index a1b048999821..f15c898ff462 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -109,6 +109,17 @@
*
* Tells the discipline that the DCD pin has changed its status.
* Used exclusively by the N_PPS (Pulse-Per-Second) line discipline.
+ *
+ * int (*receive_buf2)(struct tty_struct *, const unsigned char *cp,
+ * char *fp, int count);
+ *
+ * This function is called by the low-level tty driver to send
+ * characters received by the hardware to the line discpline for
+ * processing. <cp> is a pointer to the buffer of input
+ * character received by the device. <fp> is a pointer to a
+ * pointer of flag bytes which indicate whether a character was
+ * received with a parity error, etc.
+ * If assigned, prefer this function for automatic flow control.
*/
#include <linux/fs.h>
@@ -195,6 +206,8 @@ struct tty_ldisc_ops {
void (*write_wakeup)(struct tty_struct *);
void (*dcd_change)(struct tty_struct *, unsigned int);
void (*fasync)(struct tty_struct *tty, int on);
+ int (*receive_buf2)(struct tty_struct *, const unsigned char *cp,
+ char *fp, int count);
struct module *owner;
@@ -203,8 +216,7 @@ struct tty_ldisc_ops {
struct tty_ldisc {
struct tty_ldisc_ops *ops;
- atomic_t users;
- wait_queue_head_t wq_idle;
+ struct tty_struct *tty;
};
#define TTY_LDISC_MAGIC 0x5403