| .. SPDX-License-Identifier: GPL-2.0 | |
| ========== | |
| TTY Buffer | |
| ========== | |
| .. contents:: :local: | |
| Here, we document functions for taking care of tty buffer and their flipping. | |
| Drivers are supposed to fill the buffer by one of those functions below and | |
| then flip the buffer, so that the data are passed to :doc:`line discipline | |
| <tty_ldisc>` for further processing. | |
| Flip Buffer Management | |
| ====================== | |
| .. kernel-doc:: drivers/tty/tty_buffer.c | |
| :identifiers: tty_prepare_flip_string | |
| tty_flip_buffer_push tty_ldisc_receive_buf | |
| .. kernel-doc:: include/linux/tty_flip.h | |
| :identifiers: tty_insert_flip_string_fixed_flag tty_insert_flip_string_flags | |
| tty_insert_flip_char | |
| ---- | |
| Other Functions | |
| =============== | |
| .. kernel-doc:: drivers/tty/tty_buffer.c | |
| :identifiers: tty_buffer_space_avail tty_buffer_set_limit | |
| ---- | |
| Buffer Locking | |
| ============== | |
| These are used only in special circumstances. Avoid them. | |
| .. kernel-doc:: drivers/tty/tty_buffer.c | |
| :identifiers: tty_buffer_lock_exclusive tty_buffer_unlock_exclusive | |
| ---- | |
| Internal Functions | |
| ================== | |
| .. kernel-doc:: drivers/tty/tty_buffer.c | |
| :internal: |