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authorRodrigo Vivi <rodrigo.vivi@intel.com>2024-06-12 18:31:42 +0300
committerRodrigo Vivi <rodrigo.vivi@intel.com>2024-06-12 18:31:42 +0300
commit89aa02edaa30e4327ebc8fca9b80795bbfd4ce9b (patch)
tree10c96a25b500be034e38db049a22f53881b0fb4d /include/linux/tty_driver.h
parentec3ac2c8d941dad959dcdc760aa43bc45785d346 (diff)
parent1ddaaa244021aba8496536a6627b4ad2bc0f936a (diff)
downloadlinux-89aa02edaa30e4327ebc8fca9b80795bbfd4ce9b.tar.xz
Merge drm/drm-next into drm-xe-next
Needed to get tracing cleanup and add mmio tracing series. Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'include/linux/tty_driver.h')
-rw-r--r--include/linux/tty_driver.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 7372124fbf90..dd4b31ce6d5d 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -154,6 +154,13 @@ struct serial_struct;
*
* Optional. Called under the @tty->termios_rwsem. May sleep.
*
+ * @ldisc_ok: ``int ()(struct tty_struct *tty, int ldisc)``
+ *
+ * This routine allows the @tty driver to decide if it can deal
+ * with a particular @ldisc.
+ *
+ * Optional. Called under the @tty->ldisc_sem and @tty->termios_rwsem.
+ *
* @set_ldisc: ``void ()(struct tty_struct *tty)``
*
* This routine allows the @tty driver to be notified when the device's
@@ -372,6 +379,7 @@ struct tty_operations {
void (*hangup)(struct tty_struct *tty);
int (*break_ctl)(struct tty_struct *tty, int state);
void (*flush_buffer)(struct tty_struct *tty);
+ int (*ldisc_ok)(struct tty_struct *tty, int ldisc);
void (*set_ldisc)(struct tty_struct *tty);
void (*wait_until_sent)(struct tty_struct *tty, int timeout);
void (*send_xchar)(struct tty_struct *tty, u8 ch);