string GetStringDescriptor(byte index)
{
usb.GetDescriptor((byte)USB_DESCRIPTOR_TYPE.STRING, index, 0,
globalBuffer, globalBufferLength, out LengthTransferred);
string s2 = System.Text.Encoding.Unicode.GetString(globalBuffer, 0, (int)LengthTransferred);
if (s2.Length > 0)
{
return(s2.Substring(1, s2.Length - 1));
}
return(string.Empty);
}
public bool InitializeDevice()
{
if (deviceList != null)
{
deviceList.Free();
}
deviceList = null;
if (usb != null)
{
usb.Free();
}
usb = null;
feature_value_dict.Clear();
feature_value_lookup_dict.Clear();
foreach (Control ctrl in this.Controls)
{
if (ctrl is ComboBox)
{
ComboBox box = (ComboBox)ctrl;
box.Items.Clear();
}
}
deviceList = new LstK(KLST_FLAG.NONE);
KLST_DEVINFO_HANDLE deviceInfo;
DeviceInfo.Text = "";
bool success = false;
deviceList.MoveReset();
while (deviceList.MoveNext(out deviceInfo))
{
if ( // BSB 20120928 revised test
// (deviceInfo.Common.Vid == vendorid1 || deviceInfo.Common.Vid == vendorid2) &&
// (deviceInfo.Common.Pid == productid1 || deviceInfo.Common.Pid == productid2 || deviceInfo.Common.Pid == productid3 || deviceInfo.Common.Pid == productid4) &&
// deviceInfo.DeviceInterfaceGUID.ToUpper() == "{D49AB938-53BA-498A-A848-8E2780A4A75F}"
(deviceInfo.DeviceInterfaceGUID.ToUpper() == "{D49AB938-53BA-498A-A848-8E2780A4A75F}") &&
(
(
(deviceInfo.Common.Vid == vendorid1 || deviceInfo.Common.Vid == vendorid2) &&
(deviceInfo.Common.Pid == productid1 || deviceInfo.Common.Pid == productid2 || deviceInfo.Common.Pid == productid3 || deviceInfo.Common.Pid == productid4)
) ||
(
(deviceInfo.Common.Vid == audio_vendor_id) &&
(
(deviceInfo.Common.Pid == audio_product_id_1) ||
(deviceInfo.Common.Pid == audio_product_id_2) ||
(deviceInfo.Common.Pid == audio_product_id_3) ||
(deviceInfo.Common.Pid == audio_product_id_4) ||
(deviceInfo.Common.Pid == audio_product_id_5) ||
(deviceInfo.Common.Pid == audio_product_id_6) ||
(deviceInfo.Common.Pid == audio_product_id_7) ||
(deviceInfo.Common.Pid == audio_product_id_8) ||
(deviceInfo.Common.Pid == audio_product_id_9) ||
(deviceInfo.Common.Pid == audio_product_id_10) ||
(deviceInfo.Common.Pid == audio_product_id_11) ||
(deviceInfo.Common.Pid == audio_product_id_12)
)
)
)
)
{
if (deviceInfo.Connected)
{
success = true;
break;
}
}
}
if (!success)
{
DeviceInfo.Text += String.Format("Audio-Widget device not found!\r\n");
if (deviceList != null)
{
deviceList.Free();
}
deviceList = null;
return(false);
}
usb = new UsbK(deviceInfo);
DeviceInfo.Text += String.Format("Opening usb device OK\r\n");
usb.GetDescriptor((byte)USB_DESCRIPTOR_TYPE.DEVICE, 0, 0,
globalBuffer, globalBufferLength, out LengthTransferred);
USB_DEVICE_DESCRIPTOR deviceDescriptor = ByteToDeviceDescriptor(globalBuffer);
usb.GetDescriptor((byte)USB_DESCRIPTOR_TYPE.CONFIGURATION, 0, 0,
globalBuffer, globalBufferLength, out LengthTransferred);
USB_CONFIGURATION_DESCRIPTOR configurationDescriptor = ByteToConfigDescriptor(globalBuffer);
string product = GetStringDescriptor(deviceDescriptor.iProduct);
string manufacturer = GetStringDescriptor(deviceDescriptor.iManufacturer);
string serial = GetStringDescriptor(deviceDescriptor.iSerialNumber);
DeviceInfo.Text += String.Format("Device: VID=0x{0:X04}/PID=0x{1:X04}\r\n", deviceDescriptor.idVendor, deviceDescriptor.idProduct);
DeviceInfo.Text += String.Format("Product: {0}\r\n", product);
DeviceInfo.Text += String.Format("Manufacturer: {0}\r\n", manufacturer);
DeviceInfo.Text += String.Format("Serial number: {0}\r\n", serial);
success = SendUsbControl(interfaceNumber, (byte)BMREQUEST_DIR.DEVICE_TO_HOST, (byte)BMREQUEST_TYPE.VENDOR,
(byte)BMREQUEST_RECIPIENT.DEVICE, 0x71, 4, 1,
globalBuffer, globalBufferLength, out LengthTransferred);
ushort max_feature_value_index = globalBuffer[0];
ushort feature_index = 0;
ComboBox control = null;
for (ushort i = 0; i < max_feature_value_index; i++)
{
success = SendUsbControl(interfaceNumber, (byte)BMREQUEST_DIR.DEVICE_TO_HOST, (byte)BMREQUEST_TYPE.VENDOR,
(byte)BMREQUEST_RECIPIENT.DEVICE, 0x71, 8, i,
globalBuffer, globalBufferLength, out LengthTransferred);
if (globalBuffer[0] == 63)
{
break;
}
string output_str = "";
for (int s = (int)LengthTransferred - 1; s >= 0; s--)
{
output_str += (char)globalBuffer[s];
}
if (output_str == "end")
{
feature_index++;
control = null;
}
else
{
if (control == null)
{
control = FindFeatureControl(feature_index);
}
if (control != null)
{
control.Items.Add(output_str);
feature_value_dict[(int)i] = output_str;
feature_value_lookup_dict[feature_index.ToString() + output_str] = (int)i;
}
}
if (i > 100)
{
break;
}
}
foreach (Control ctrl in this.Controls)
{
if (ctrl is ComboBox)
{
int index = Convert.ToInt32(ctrl.Tag);
ComboBox box = (ComboBox)ctrl;
success = SendUsbControl(interfaceNumber, (byte)BMREQUEST_DIR.DEVICE_TO_HOST, (byte)BMREQUEST_TYPE.VENDOR,
(byte)BMREQUEST_RECIPIENT.DEVICE, 0x71, 4, (byte)(2 + index),
globalBuffer, globalBufferLength, out LengthTransferred);
int feature_value_index = (int)globalBuffer[0];
if (feature_value_dict.ContainsKey(feature_value_index))
{
string text = feature_value_dict[feature_value_index].ToString();
box.SelectedIndex = box.Items.IndexOf(text);
}
}
}
return(true);
}