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