Lines Matching +full:buffer +full:- +full:size

4  * SPDX-License-Identifier: Apache-2.0
37  * "tty" device provides support for buffered, interrupt-driven,
38  * timeout-controlled access to an underlying UART device. For
39  * completeness, it also support non-interrupt-driven, busy-polling
48  *                 interrupt-driven operation)
65 	tty->rx_timeout = timeout;  in tty_set_rx_timeout()
71  * Set timeout for putchar() operation, for a case when output buffer is full.
79 	tty->tx_timeout = timeout;  in tty_set_tx_timeout()
83  * @brief Set receive buffer for tty device.
85  * Set receive buffer or switch to unbuffered operation for receive.
88  * @param buf buffer, or NULL for unbuffered operation
89  * @param size buffer buffer size, 0 for unbuffered operation
91  *    EINVAL: unsupported buffer (size)
93 int tty_set_rx_buf(struct tty_serial *tty, void *buf, size_t size);
96  * @brief Set transmit buffer for tty device.
98  * Set transmit buffer or switch to unbuffered operation for transmit.
103  * @param buf buffer, or NULL for unbuffered operation
104  * @param size buffer buffer size, 0 for unbuffered operation
106  *    EINVAL: unsupported buffer (size)
108 int tty_set_tx_buf(struct tty_serial *tty, void *buf, size_t size);
114  * @param buf buffer to read data to
115  * @param size maximum number of bytes to read
116  * @return >0, number of actually read bytes (can be less than size param)
117  *         =0, for EOF-like condition (e.g., break signaled)
118  *         <0, in case of error (e.g. -EAGAIN if timeout expired). errno
121 ssize_t tty_read(struct tty_serial *tty, void *buf, size_t size);
127  * @param buf buffer containing data
128  * @param size maximum number of bytes to write
129  * @return =>0, number of actually written bytes (can be less than size param)
130  *         <0, in case of error (e.g. -EAGAIN if timeout expired). errno
133 ssize_t tty_write(struct tty_serial *tty, const void *buf, size_t size);