static int wince_get_active_config_descriptor(
struct libusb_device *device,
unsigned char *buffer, size_t len, int *host_endian)
{
struct wince_device_priv *priv = _device_priv(device);
DWORD actualSize = len;
*host_endian = 0;
if (!UkwGetConfigDescriptor(priv->dev, UKW_ACTIVE_CONFIGURATION, buffer, len, &actualSize)) {
return translate_driver_error(GetLastError());
}
return actualSize;
}
static int wince_get_config_descriptor(
struct libusb_device *device,
uint8_t config_index,
unsigned char *buffer, size_t len, int *host_endian)
{
struct wince_device_priv *priv = _device_priv(device);
DWORD actualSize = len;
*host_endian = 0;
if (!UkwGetConfigDescriptor(priv->dev, config_index, buffer, len, &actualSize))
return translate_driver_error(GetLastError());
return actualSize;
}
static void requestConfigurationDescriptor(char line[])
{
// Parse the device index
DWORD devIdx = 0;
line = parseNumber(line, devIdx);
if (!line) {
printf("Please provide a decimal device number following the command\n");
return;
}
if (devIdx >= gDeviceListSize || devIdx < 0) {
printf("Invalid device index '%d' provided\n", devIdx);
return;
}
// Parse the optional configuration number
DWORD configuration = UKW_ACTIVE_CONFIGURATION;
line = parseNumber(line, configuration);
// Parse the optional buffer size number
DWORD bufferLength = MAX_CONFIG_BUFFER;
if (line) {
// See if there is another parameter for buffer length
line = parseNumber(line, bufferLength);
if (bufferLength > MAX_CONFIG_BUFFER) {
printf("Provided buffer length is too large, the maximum is %d\n", MAX_CONFIG_BUFFER);
return;
}
}
// Print the command which is about to be issued
if (configuration == UKW_ACTIVE_CONFIGURATION) {
printf("No configuration specified, reading active configuration from device %d, length %d\n",
devIdx, bufferLength);
} else {
printf("Requesting descriptor for configuration %d from device %d, length %d\n",
configuration, devIdx, bufferLength);
}
// All parameters decoded, issue command
UKW_DEVICE device = gDeviceList[devIdx];
unsigned char descBuf[MAX_CONFIG_BUFFER];
DWORD descLength = 0;
BOOL status = UkwGetConfigDescriptor(device, configuration, descBuf, bufferLength, &descLength);
if (status) {
printf("Retrieved descriptor of length %d\n", descLength);
printHexDump(descBuf, descLength);
} else {
printf("Failed to retrieve configuration descriptor with error %d\n", GetLastError());
}
}
