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dsmi_gpio_get_value
Prototype
int dsmi_gpio_get_value(int device_id, unsigned int gpio, int *p_value)
Description
Obtains the level of a GPIO pin.
In the EP scenario, storage AI cards work with Dorado storage products.
Parameters
Parameter |
Input/Output |
Description |
|---|---|---|
device_id |
Input |
Device ID For Ascend 310 AI Processors, the value range is 0–63. Obtain the actual device ID by calling dsmi_list_device. |
gpio |
Input |
Pin |
p_value |
Output |
High or low level |
Returns
Type |
Description |
|---|---|
int |
0 on success; else, failure |
Restrictions
Run the caller application as the root user on a physical machine. Otherwise, a permission error is returned.
This API works with Firmware 1.73.5.6.50 or later.
Example
int ret = 0;
int deviceid = 0;
unsigned int gpio = 444;
int value = 0;
ret = dsmi_gpio_get_value(deviceid, gpio, &value);
if(ret != 0){
//To-do: records logs.
return ret;
}
...