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Get the table of supported LANGIDs for the given device
#include <sys/usbdi.h>
usbd_string_descriptor_t
*usbd_languages_descriptor(
struct usbd_device *device,
struct usbd_desc_node **node );
- device
- An opaque handle used to identify the USB device.
- node
- Indicates the descriptor's location for rooting future requests.
libusbdi
The usbd_languages_descriptor() function lets you obtain
the table of supported language IDs for the device.
The usbd_string_descriptor_t structure looks
like this:
typedef struct usbd_string_descriptor {
_uint8 bLength;
_uint8 bDescriptorType;
_uint16 bString[1];
} usbd_string_descriptor_t;
A pointer usbd_string_descriptor_t on success,
or NULL on error.
QNX Neutrino, QNX 4
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
usbd_args_lookup(),
usbd_configuration_descriptor(),
usbd_device_lookup(),
usbd_device_extra(),
usbd_device_descriptor(),
usbd_endpoint_descriptor(),
usbd_hcd_info(),
usbd_hub_descriptor(),
usbd_interface_descriptor(),
usbd_parse_descriptors(),
usbd_string(),
usbd_urb_status()
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