diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2013-06-15 15:28:28 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-17 23:55:11 +0400 |
| commit | f6c8dbe6e50c6e5121d7b6644718207daa008221 (patch) | |
| tree | f7200d98ecaa899fb2c83d6b58b88a20b302f936 /include/linux/tty.h | |
| parent | a630fbfbb1beeffc5bbe542a7986bf2068874633 (diff) | |
| download | linux-f6c8dbe6e50c6e5121d7b6644718207daa008221.tar.xz | |
n_tty: Encapsulate minimum_to_wake within N_TTY
minimum_to_wake is unique to N_TTY processing, and belongs in
per-ldisc data.
Add the ldisc method, ldisc_ops::fasync(), to notify line disciplines
when signal-driven I/O is enabled or disabled. When enabled for N_TTY
(by fcntl(F_SETFL, O_ASYNC)), blocking reader/polls will be woken
for any readable input. When disabled, blocking reader/polls are not
woken until the read buffer is full.
Canonical mode (L_ICANON(tty), n_tty_data::icanon) is not affected by
the minimum_to_wake setting.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/tty.h')
| -rw-r--r-- | include/linux/tty.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index 82ab69bc9b79..01ac30efd6a6 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -272,7 +272,6 @@ struct tty_struct { #define N_TTY_BUF_SIZE 4096 unsigned char closing:1; - unsigned short minimum_to_wake; unsigned char *write_buf; int write_cnt; /* If the tty has a pending do_SAK, queue it here - akpm */ |