u-boot/include/misc.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
10  * misc_read() - Read the device to buffer, optional.
13  * @buf: pointer to data buffer
16  * Return: number of bytes read if OK (may be 0 if EOF), -ve on error
21  * misc_write() - Write buffer to the device, optional.
24  * @buf: pointer to data buffer
27  * Return: number of bytes written if OK (may be < @size), -ve on error
32  * misc_ioctl() - Assert command to the device, optional.
35  * @buf: pointer to buffer related to the request
37  * Return: 0 if OK, -ve on error
42  * misc_call() - Send a message to the device and wait for a response.
46  * @tx_size: the size of the buffer pointed at by tx_msg.
47  * @rx_msg: the buffer to receive the response message payload. May be NULL if
49  * @rx_size: the size of the buffer pointed at by rx_msg.
57  * Return: the response message size if OK, -ve on error
63  * misc_set_enabled() - Enable or disable a device.
64  * @dev: the device to enable or disable.
65  * @val: the flag that tells the driver to either enable or disable the device.
67  * The semantics of "disable" and "enable" should be understood here as
74  * Return: -ve on error, 0 if the previous state was "disabled", 1 if the
80  * struct misc_ops - Driver model Misc operations
87 	 * Read the device to buffer, optional.
90 	 * @buf: pointer to data buffer
93 	 * Return: number of bytes read if OK (may be 0 if EOF), -ve on error
98 	 * Write buffer to the device, optional.
101 	 * @buf: pointer to data buffer
104 	 * Return: number of bytes written if OK (may be < @size), -ve on error
112 	 * @buf: pointer to buffer related to the request
114 	 * Return: 0 if OK, -ve on error
123 	 * @tx_size: the size of the buffer pointed at by tx_msg
124 	 * @rx_msg: the buffer to receive the response message payload. May be
126 	 * @rx_size: the size of the buffer pointed at by rx_msg
128 	 * Return: the response message size if OK, -ve on error
133 	 * Enable or disable a device, optional.
134 	 * @dev: the device to enable.
135 	 * @val: the flag that tells the driver to either enable or disable the
138 	 * Return: -ve on error, 0 if the previous state was "disabled", 1 if