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usbd_languages_descriptor()

Get the table of supported LANGIDs for the given device

Synopsis:

#include <sys/usbdi.h>

usbd_string_descriptor_t 
   *usbd_languages_descriptor( 
     struct usbd_device *device, 
     struct usbd_desc_node **node );

Description:

The usbd_languages_descriptor() function lets you obtain the table of supported language IDs for the device.

device

An opaque handle used to identify the USB device.

node

Indicates the descriptor's location for rooting future requests.

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;

Returns:

A pointer usbd_string_descriptor_t on success, NULL on error.

Classification:

QNX Neutrino, QNX 4

See also:

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()