New to GHI.USB.HOST Question about how to Select Interface. Can't see all interfaces

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1

I have a USB Modem that I am trying to send AT commands.

I have used modem with Microchip’s Generic host MLA and succeeded using Pic24.

I am trying to switch to .netmf and GHI libraries.

With GHI Code listed last…I can’t see the correct interface with endpoints having 512 packet size.

Using USBVIEW on PC I see them.

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using USBview.exe
Device Descriptor
[/title]bcdUSB: 0x0200
bDeviceClass: 0x00
bDeviceSubClass: 0x00
bDeviceProtocol: 0x00
bMaxPacketSize0: 0x40 (64)
idVendor: 0x12D1
idProduct: 0x1001
bcdDevice: 0x0000
iManufacturer: 0x02
0x0409: "HUAWEI Technology"
iProduct: 0x01
0x0409: "HUAWEI Mobile"
iSerialNumber: 0x00
bNumConfigurations: 0x01

ConnectionStatus: DeviceConnected
Current Config Value: 0x01
Device Bus Speed: High
Device Address: 0x01
Open Pipes: 9

Endpoint Descriptor:
bEndpointAddress: 0x81 IN
Transfer Type: Interrupt
wMaxPacketSize: 0x0040 (64)
bInterval: 0x05

Endpoint Descriptor:
bEndpointAddress: 0x82 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x01 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x83 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x02 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x84 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x03 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x04 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x85 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Configuration Descriptor:
wTotalLength: 0x006C
bNumInterfaces: 0x04
bConfigurationValue: 0x01
iConfiguration: 0x03
0x0409: "Qualcomm Configuration"
bmAttributes: 0xE0 (Bus Powered Self Powered Remote Wakeup)
MaxPower: 0xFA (500 Ma)

Interface Descriptor:
bInterfaceNumber: 0x00
bAlternateSetting: 0x00
bNumEndpoints: 0x03
bInterfaceClass: 0xFF
bInterfaceSubClass: 0xFF
bInterfaceProtocol: 0xFF
iInterface: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x81 IN
Transfer Type: Interrupt
wMaxPacketSize: 0x0040 (64)
bInterval: 0x05

Endpoint Descriptor:
bEndpointAddress: 0x82 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x01 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Interface Descriptor:
bInterfaceNumber: 0x01
bAlternateSetting: 0x00
bNumEndpoints: 0x02
bInterfaceClass: 0xFF
bInterfaceSubClass: 0xFF
bInterfaceProtocol: 0xFF
iInterface: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x83 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x02 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Interface Descriptor:
bInterfaceNumber: 0x02
bAlternateSetting: 0x00
bNumEndpoints: 0x02
bInterfaceClass: 0xFF
bInterfaceSubClass: 0xFF
bInterfaceProtocol: 0xFF
iInterface: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x84 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x03 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Interface Descriptor:
bInterfaceNumber: 0x03
bAlternateSetting: 0x00
bNumEndpoints: 0x02
bInterfaceClass: 0x08
bInterfaceSubClass: 0x06
bInterfaceProtocol: 0x50
iInterface: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x04 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x85 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

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Using firware found on Forum— I get Descriptors and Endpoints below…no 512 packet size

[line
Unknown Device connected.
ID = A09F7944
Port = 0
VID = 12D1
PID = 1001
Type = 0
Number of configurations . . . 1
Max Packet size . . . . . . . 64
Protocol code . . . . . . . . 00
Release number . . . . . . . . 00
Serial number index . . . . . 00
Subclass code . . . . . . . . 00
USB sepecification number . . 200
=== Interface ===
Class: Vendor Specific
SubClass: 255
Number: 0
Protocol: 255
Type: 4
– Endpoint –
Attributes: 3
Address: 0081
Type: 5
Interval: 5
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0082
Type: 5
Interval: 32
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0001
Type: 5
Interval: 32
MaxPacket: 64

=== Interface ===
Class: Vendor Specific
SubClass: 255
Number: 1
Protocol: 255
Type: 4
– Endpoint –
Attributes: 2
Address: 0083
Type: 5
Interval: 32
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0002
Type: 5
Interval: 32
MaxPacket: 64

=== Interface ===
Class: Vendor Specific
SubClass: 255
Number: 2
Protocol: 255
Type: 4
– Endpoint –
Attributes: 2
Address: 0084
Type: 5
Interval: 32
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0003
Type: 5
Interval: 32
MaxPacket: 64

=== Interface ===
Class: Mass Storage
SubClass: 6
Number: 3
Protocol: 80
Type: 4
– Endpoint –
Attributes: 2
Address: 0004
Type: 5
Interval: 0
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0085
Type: 5
Interval: 0
MaxPacket: 64

So far, so good …

Unknown Device connected.
ID = A09F7944
Port = 0
VID = 12D1
PID = 1001
Type = 0
Number of configurations . . . 1
Max Packet size . . . . . . . 64
Protocol code . . . . . . . . 00
Release number . . . . . . . . 00
Serial number index . . . . . 00
Subclass code . . . . . . . . 00
USB sepecification number . . 200
=== Interface ===
Class: Vendor Specific
SubClass: 255
Number: 0
Protocol: 255
Type: 4
– Endpoint –
Attributes: 3
Address: 0081
Type: 5
Interval: 5
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0082
Type: 5
Interval: 32
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0001
Type: 5
Interval: 32
MaxPacket: 64

=== Interface ===
Class: Vendor Specific
SubClass: 255
Number: 1
Protocol: 255
Type: 4
– Endpoint –
Attributes: 2
Address: 0083
Type: 5
Interval: 32
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0002
Type: 5
Interval: 32
MaxPacket: 64

=== Interface ===
Class: Vendor Specific
SubClass: 255
Number: 2
Protocol: 255
Type: 4
– Endpoint –
Attributes: 2
Address: 0084
Type: 5
Interval: 32
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0003
Type: 5
Interval: 32
MaxPacket: 64

=== Interface ===
Class: Mass Storage
SubClass: 6
Number: 3
Protocol: 80
Type: 4
– Endpoint –
Attributes: 2
Address: 0004
Type: 5
Interval: 0
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0085
Type: 5
Interval: 0
MaxPacket: 64

So far, so good …

Unknown Device connected.
ID = A09F7944
Port = 0
VID = 12D1
PID = 1001
Type = 0
Number of configurations . . . 1
Max Packet size . . . . . . . 64
Protocol code . . . . . . . . 00
Release number . . . . . . . . 00
Serial number index . . . . . 00
Subclass code . . . . . . . . 00
USB sepecification number . . 200
=== Interface ===
Class: Vendor Specific
SubClass: 255
Number: 0
Protocol: 255
Type: 4
– Endpoint –
Attributes: 3
Address: 0081
Type: 5
Interval: 5
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0082
Type: 5
Interval: 32
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0001
Type: 5
Interval: 32
MaxPacket: 64

=== Interface ===
Class: Vendor Specific
SubClass: 255
Number: 1
Protocol: 255
Type: 4
– Endpoint –
Attributes: 2
Address: 0083
Type: 5
Interval: 32
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0002
Type: 5
Interval: 32
MaxPacket: 64

=== Interface ===
Class: Vendor Specific
SubClass: 255
Number: 2
Protocol: 255
Type: 4
– Endpoint –
Attributes: 2
Address: 0084
Type: 5
Interval: 32
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0003
Type: 5
Interval: 32
MaxPacket: 64

=== Interface ===
Class: Mass Storage
SubClass: 6
Number: 3
Protocol: 80
Type: 4
– Endpoint –
Attributes: 2
Address: 0004
Type: 5
Interval: 0
MaxPacket: 64

– Endpoint –
Attributes: 2
Address: 0085
Type: 5
Interval: 0
MaxPacket: 64

So far, so good …]

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Code below:
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using GHI.Usb.Host;
using Microsoft.SPOT;
using System.Threading;
using System.Text;
using System.IO;



public class Program
{
    private static RawDevice raw;

    public static void Main()
    {
        Controller.UnknownDeviceConnected += Controller_UnknownDeviceConnected;
        Controller.UsbSerialConnected += Controller_Serial;
        Controller.Start();

        Thread.Sleep(-1);
    }


    static void Controller_Serial(object sender,UsbSerial sc)
    {
        Debug.Print("Serial Connected");
    }





    static void Controller_UnknownDeviceConnected(object sender, Controller.UnknownDeviceConnectedEventArgs unknowndevice)
    {
        Debug.Print("");
        Debug.Print("Unknown Device connected.");
        Debug.Print("   ID   = " + unknowndevice.Id.ToString("X4"));
        Debug.Print("   Port = " + unknowndevice.PortNumber);
        Debug.Print("   VID  = " + unknowndevice.VendorId.ToString("X4"));
        Debug.Print("   PID  = " + unknowndevice.ProductId.ToString("X4"));
        Debug.Print("   Type = " + (BaseDevice.DeviceType)unknowndevice.Type);

        raw = new RawDevice(unknowndevice.Id,
                                unknowndevice.InterfaceIndex,
                                unknowndevice.VendorId,
                                unknowndevice.ProductId,
                                unknowndevice.PortNumber,
                                BaseDevice.DeviceType.Unknown);

       

        GHI.Usb.Descriptors.Device devdesc = raw.GetDeviceDescriptor();
        Debug.Print("Number of configurations . . . " + devdesc.NumberOfConfigurations);
        Debug.Print("Max Packet size  . . . . . . . " + devdesc.MaximumPacketSize);
        Debug.Print("Protocol code  . . . . . . . . " + devdesc.ProtocalCode.ToString("X2"));
        Debug.Print("Release number . . . . . . . . " + devdesc.ReleaseNumber.ToString("X2"));
        Debug.Print("Serial number index  . . . . . " + devdesc.SerialNumberIndex.ToString("X2"));
        Debug.Print("Subclass code  . . . . . . . . " + devdesc.SubclassCode.ToString("X2"));
        Debug.Print("USB sepecification number  . . " + devdesc.UsbSpecificationNumber.ToString("X2"));
 //'raw.SendSetupPacket(0x00, 0x09, 1, 0x00);
        // On this device there is only one configuration descriptor
        GHI.Usb.Descriptors.Configuration cfgdesc = raw.GetConfigurationDescriptor(0);
        // look for the HID device
       

        for (int i = 0; i < cfgdesc.Interfaces.Length; i++)
        {
            Debug.Print("  === Interface ===");
            Debug.Print("  Class: " + ClassToString(cfgdesc.Interfaces[i].ClassCode));
            Debug.Print("  SubClass: " + cfgdesc.Interfaces[i].SubclassCode);
            Debug.Print("  Number: " + cfgdesc.Interfaces[i].Number);
            Debug.Print("  Protocol: " + cfgdesc.Interfaces[i].ProtocolCode);
            Debug.Print("  Type: " + cfgdesc.Interfaces[i].Type);

            for (int ep = 0; ep < cfgdesc.Interfaces[i].Endpoints.Length; ep++)
            {
                Debug.Print("   -- Endpoint --");
                Debug.Print("    Attributes: " + cfgdesc.Interfaces[i].Endpoints[ep].Attributes);
                Debug.Print("    Address: " + cfgdesc.Interfaces[i].Endpoints[ep].Address.ToString("X4"));
                Debug.Print("    Type: " + cfgdesc.Interfaces[i].Endpoints[ep].Type);
                Debug.Print("    Interval: " + cfgdesc.Interfaces[i].Endpoints[ep].Interval);
                Debug.Print("    MaxPacket: " + cfgdesc.Interfaces[i].Endpoints[ep].MaximumPacketSize);
                Debug.Print(" ");
            }

            Debug.Print(" ");
            Debug.Print(" ");
        }

        Debug.Print("So far, so good ...");

    }
    private static string ClassToString(byte interfaceClass)
    {
        switch (interfaceClass)
        {
            case 0x0:
                return "Base Class";
            case 0x01:
                return "Audio";
            case 0x02:
                return "Communications/CDC";
            case 0x03:
                return "HID";
            case 0x05:
                return "Physical";
            case 0x06:
                return "Image";
            case 0x07:
                return "Printer";
            case 0x08:
                return "Mass Storage";
            case 0x09:
                return "Hub";
            case 0x0A:
                return "CDC-Data";
            case 0x0B:
                return "Smart Card";
            case 0x0D:
                return "Content Security";
            case 0x0E:
                return "Video";
            case 0x0F:
                return "Personal Healthcare";
            case 0xDC:
                return "Diagnostic Device";
            case 0xE0:
                return "Wireless Controller";
            case 0xEF:
                return "Misc";
            case 0xFE:
                return "Application Specific";
            case 0xFF:
                return "Vendor Specific";
            default:
                return "unknown";
        }

    }
}
2

Please edit your post and add code tags to make it readable, the icon with ones and zeros.

3

Thanks Gus,

Code tagged.

4

@ pmjackson - Aside from the packet size, is everything else correct?

5

I does look correct with exception of Maxpacket size.

My real goal is to use a USB Modem with G120 brd to send/receive data via PPP.

But seeing other post, it seems at this time, that is not Possible except through Serial USB or USB CDC interface.

Am I correct on that?

Another side question?

Each time the USB device is plugged in… the firmware listed cycles through Controller_UnknownDeviceConnected three times and each time showing the same interface and endpoint information.
Is that what is supposed to happen?

Regards,

Pat Jackson

6

@ pmjackson - It really depends on the specific modem you are using. If you get unknown device multiple times, it just means that your USB modem exposes multiple USB devices and we do not support any of them out of the box.

7

Would GHI be interested in consulting to provide a solution?

8

Possibly Insider information?

9

@ pmjackson - I would contact them directly for consulting projects.

10

No, not insider info at all. GHI do offer consulting, but as @ Architect says, approach them directly outside the forum and I’m sure they’ll be able to discuss (plus, it’s the weekend! :wink: )