Zephyr API Documentation 3.7.99
A Scalable Open Source RTOS
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1-Wire Interface More...
Topics | |
1-Wire Sensor API | |
1-Wire Sensor API | |
1-Wire data link layer | |
1-Wire data link layer | |
1-Wire network layer | |
1-Wire network layer | |
Enumerations | |
enum | w1_settings_type { W1_SETTING_SPEED , W1_SETTING_STRONG_PULLUP , W1_SETINGS_TYPE_COUNT } |
Defines the 1-Wire master settings types, which are runtime configurable. More... | |
Functions | |
static int | w1_lock_bus (const struct device *dev) |
Lock the 1-wire bus to prevent simultaneous access. | |
static int | w1_unlock_bus (const struct device *dev) |
Unlock the 1-wire bus. | |
1-Wire Interface
enum w1_settings_type |
#include <zephyr/drivers/w1.h>
Defines the 1-Wire master settings types, which are runtime configurable.
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inlinestatic |
#include <zephyr/drivers/w1.h>
Lock the 1-wire bus to prevent simultaneous access.
This routine locks the bus to prevent simultaneous access from different threads. The calling thread waits until the bus becomes available. A thread is permitted to lock a mutex it has already locked.
[in] | dev | Pointer to the device structure for the driver instance. |
0 | If successful. |
-errno | Negative error code on error. |
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inlinestatic |
#include <zephyr/drivers/w1.h>
Unlock the 1-wire bus.
This routine unlocks the bus to permit access to bus line.
[in] | dev | Pointer to the device structure for the driver instance. |
0 | If successful. |
-errno | Negative error code on error. |