hidd_get_product_string()
Get the product string
Synopsis:
#include <sys/hiddi.h>
int hidd_get_product_string( struct hidd_connection *connection,
struct hidd_device_instance *device_instance,
void *buff,
_Uint16t buff_len );Arguments:
- report_instance
-
The HID stack connection handle (from hidd_connect()).
- device_instance
-
A pointer to a hidd_device_instance_t instance containing the number of the device.
- buff
- A pre-allocated memory buffer to store the product string.
- buff_len
-
The length of the provided buffer in bytes.
Description:
The hidd_get_product_string() function gets the product string
from a device.
Note:
Some devices don't implement the product
string descriptor.
Returns:
- EOK
- Success.
- ENOTCONN
- The connection is NULL
- EINVAL
- The device_instance or buff is NULL.
- ENODEV
- The device was removed.
- ENOTSUP
- The device doesn't support getting the product string.
This function can also return a device-specific error code.
Classification:
QNX OS
| Safety: | |
|---|---|
| Cancellation point | Yes |
| Signal handler | No |
| Thread | Yes |
Page updated: