diff options
Diffstat (limited to 'include/linux/console.h')
| -rw-r--r-- | include/linux/console.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/linux/console.h b/include/linux/console.h index d624200cfc17..df23148987ee 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -173,7 +173,7 @@ static inline void con_debug_leave(void) { } * @CON_BRL: Indicates a braille device which is exempt from * receiving the printk spam for obvious reasons. * @CON_EXTENDED: The console supports the extended output format of - * /dev/kmesg which requires a larger output buffer. + * /dev/kmsg which requires a larger output buffer. * @CON_SUSPENDED: Indicates if a console is suspended. If true, the * printing callbacks must not be called. * @CON_NBCON: Console can operate outside of the legacy style console_lock @@ -615,6 +615,15 @@ extern bool nbcon_allow_unsafe_takeover(void); extern bool nbcon_kdb_try_acquire(struct console *con, struct nbcon_write_context *wctxt); extern void nbcon_kdb_release(struct nbcon_write_context *wctxt); +extern bool nbcon_write_context_is_braille(struct nbcon_write_context *wctxt); +extern bool nbcon_braille_try_acquire(struct console *con, + struct nbcon_write_context *wctxt); +extern void nbcon_braille_release(struct nbcon_write_context *wctxt); + +static inline bool nbcon_is_braille(struct console *con) +{ + return con && (con->flags & CON_BRL); +} /* * Check if the given console is currently capable and allowed to print @@ -678,8 +687,14 @@ static inline void nbcon_reacquire_nobuf(struct nbcon_write_context *wctxt) { } static inline bool nbcon_kdb_try_acquire(struct console *con, struct nbcon_write_context *wctxt) { return false; } static inline void nbcon_kdb_release(struct nbcon_write_context *wctxt) { } +static inline +bool nbcon_write_context_is_braille(struct nbcon_write_context *wctxt) { return false; } static inline bool console_is_usable(struct console *con, short flags, bool use_atomic) { return false; } +static inline bool nbcon_braille_try_acquire(struct console *con, + struct nbcon_write_context *wctxt) { return false; } +static inline void nbcon_braille_release(struct nbcon_write_context *wctxt) { } +static inline bool nbcon_is_braille(struct console *con) { return false; } #endif extern int console_set_on_cmdline; |