USBH_Device Class?

NETMF & Gadgeteer
1

Hi.
USBH_Device class does not appear in the namespace GHIElectronics.NETMF.USBHost version 4.1.5.0, was changed by another class? ???

2

It is in different dll as shows in documentation

3

Hi Gus.
Will not let me clear your response, update the firmware of my FEZ Domino
MFDeploy reported by the tool.

ClrInfo.targetFrameworkVersion: 4.1.2821.0
SolutionReleaseInfo.solutionVersion: 4.1.5.1
SolutionReleaseInfo.solutionVendorInfo: GHI Electronics, LLC
SoftwareVersion.BuildDate: April 11 2011

Install SDK FEZ references but does not appear USBH_Device class to run the following example of USB Mass Storage:

 class Program
    {
 
        / / Hold a static reference in case the GC kicks in and disposing it
        / / Automatically, NOTE THAT we support only one in this example!
        ps PersistentStorage static;
 
        public static void Main ()
        {
            / / Subscribe to events RemovableMedia
            RemovableMedia.Insert + = RemovableMedia_Insert;
            RemovableMedia.Eject + = RemovableMedia_Eject;
 
            / / Subscribe to USB events
            USBHostController.DeviceConnectedEvent + = DeviceConnectedEvent;
 
            / / Sleep forever
            Thread.Sleep (Timeout.Infinite)
        }
 
        static void DeviceConnectedEvent (USBH_Device device)
        {
            if (device.TYPE == USBH_DeviceType.MassStorage)
            {
                Debug.Print ("USB Mass Storage detected ...");
                ps = new PersistentStorage (device);
                ps.MountFileSystem ();
            }
        }
 
        static void RemovableMedia_Insert (object sender, MediaEventArgs e)
        {
            Debug.Print ("Storage \" "+ + e.Volume.RootDirectory
                        "\" Is inserted. ")
            Debug.Print ("Getting files and folders:");
            if (e.Volume.IsFormatted)
            {
                string [] files = Directory.GetFiles (e.Volume.RootDirectory)
                string [] folders =
                           Directory.GetDirectories (e.Volume.RootDirectory)
 
                Debug.Print ("Files available on" +
                            e.Volume.RootDirectory + ":");
                for (int i = 0; i <files.Length; i + +)
                    Debug.Print (files [i]);
 
                Debug.Print ("Folders available on" +
                            e.Volume.RootDirectory + ":");
                for (int i = 0; i <folders.Length; i + +)
                    Debug.Print (folders [i]);
            }
            else
            {
                Debug.Print ("Storage is Not formatted. Format on PC with
                            FAT32/FAT16 first. ")
            }
        }
 
        static void RemovableMedia_Eject (object sender, MediaEventArgs e)
        {
            Debug.Print ("Storage \" "+ + e.Volume.RootDirectory
                        "\" Is ejected. ")
        }
    }
}
4

Open up your GHI NetMF library documentation, navigate to GHIElectronics.NETMF.USBHost -> USBH_Device and you will see it depends on GHIElectronics.NETMF.System.

5

Thank EriSan500

6

When i tried this i get the following error.

ClrInfo.targetFrameworkVersion: 4.1.2821.0
SolutionReleaseInfo.solutionVersion: 4.1.6.0
SoftwareVersion.BuildDate: Jun 30 2011

Any ideas why ?

7

Look this up in NETMF documentation. Directory should be in System.IO or maybe Microsoft.SPOT.IO

8

I am getting the error as well. Cannot easily located the namespace to add/reference to get this cleared up.
The name ‘Directory’ does not exist in the current context?"

9

Did you include System.IO ?

Are you using 4.1 ?