public override Configuration GetConfiguration()
{
var setup = new usbfs_ctrltransfer
{
bRequestType = (byte)(RequestType.USB_DIR_IN | RequestType.USB_TYPE_STANDARD | RequestType.USB_RECIP_DEVICE),
bRequest = (byte)Request.GET_CONFIGURATION,
wLength = 1
};
byte buf = 0;
setup.data = &buf;
setup = ControlRequest(devname, setup);
byte currentConfiguration = ((byte *)setup.data)[0];
fixed(byte *configDescriptors = otherDescriptors)
{
var descriptorPtr = (ConfigurationDescriptor *)configDescriptors;
ushort currentIndex = 0;
for (int i = 0; i < ConfigurationCount; i++)
{
var descriptor = *descriptorPtr;
if (descriptor.bDescriptorType.HasFlag(DescriptorType.Configuration))
{
if (descriptor.bConfigurationValue == currentConfiguration)
{
var start = currentIndex + sizeof(ConfigurationDescriptor);
var end = currentIndex + descriptor.wTotalLength - sizeof(ConfigurationDescriptor) - 1;
return(new LinuxDeviceConfiguration(descriptor, devname, otherDescriptors[start..end]));
public override Interface GetInterface()
{
var setup = new usbfs_ctrltransfer
{
bRequestType = (byte)(RequestType.USB_DIR_IN | RequestType.USB_RECIP_DEVICE | RequestType.USB_TYPE_STANDARD),
bRequest = (byte)Request.GET_INTERFACE,
wLength = 1
};
byte buf = 0;
setup.data = &buf;
setup = ControlRequest(devname, setup);
byte currentInterface = ((byte *)setup.data)[0];
fixed(byte *interfaceDescriptors = otherDescriptors)
{
var descriptorPtr = (InterfaceDescriptor *)interfaceDescriptors;
for (int i = 0; i < InterfaceCount; i++)
{
var descriptor = *descriptorPtr;
if (descriptor.bInterfaceNumber == currentInterface)
{
var start = i * sizeof(InterfaceDescriptor);
var end = start + sizeof(InterfaceDescriptor);
return(new LinuxDeviceInterface(descriptor, devname, otherDescriptors[start..end]));
public static usbfs_ctrltransfer ControlRequest(string devname, usbfs_ctrltransfer setup)
{
var fd = open(devname, oflag.NONBLOCK | oflag.RDWR);
if (fd == -1 || ioctl(fd, USBDEVFS_CONTROL, ref setup) == -1)
{
throw CreateNativeException(fd);
}
close(fd);
return(setup);
}
public override bool SetConfiguration(ushort index)
{
var setup = new usbfs_ctrltransfer
{
bRequestType = (byte)(RequestType.USB_DIR_IN | RequestType.USB_TYPE_STANDARD | RequestType.USB_RECIP_DEVICE),
bRequest = (byte)Request.SET_CONFIGURATION,
wValue = index
};
ControlRequest(devname, setup);
return(true);
}
public override bool SetInterface(ushort index)
{
var setup = new usbfs_ctrltransfer
{
bRequestType = (byte)(RequestType.USB_DIR_IN | RequestType.USB_RECIP_DEVICE | RequestType.USB_TYPE_STANDARD),
bRequest = (byte)Request.SET_INTERFACE,
wValue = index
};
ControlRequest(devname, setup);
return(true);
}
public override string GetIndexedString(byte index)
{
var setup = new usbfs_ctrltransfer
{
bRequestType = (byte)(RequestType.USB_DIR_IN | RequestType.USB_TYPE_STANDARD | RequestType.USB_RECIP_DEVICE),
bRequest = (byte)Request.GET_DESCRIPTOR,
wValue = string_index(0),
wIndex = 0,
wLength = 255
};
fixed(char *strbuf = new char[256])
{
setup.data = strbuf;
var fd = open(devname, oflag.NONBLOCK | oflag.RDWR);
if (fd == -1 || ioctl(fd, USBDEVFS_CONTROL, ref setup) == -1)
{
throw CreateNativeException();
}
setup.wIndex = (ushort)(strbuf[2] | strbuf[3] << 8);
setup.wValue = string_index(index);
for (int i = 0; i < 256; i++)
{
((byte *)setup.data)[i] = 0;
}
ioctl(fd, USBDEVFS_CONTROL, ref setup);
close(fd);
var sb = new StringBuilder();
var retBuf = (char *)setup.data;
for (int i = 1; i < 255; i++)
{
var c = retBuf[i];
if (c == 0)
{
break;
}
sb.Append(c);
}
return(sb.ToString());
}
}
public override Interface GetInterface()
{
var setup = new usbfs_ctrltransfer
{
bRequestType = (byte)(RequestType.USB_DIR_IN | RequestType.USB_RECIP_DEVICE | RequestType.USB_TYPE_STANDARD),
bRequest = (byte)Request.GET_INTERFACE,
wValue = 0,
wIndex = 0,
wLength = 1
};
byte buf = 0;
setup.data = &buf;
var fd = open(devname, oflag.NONBLOCK | oflag.RDWR);
if (fd != -1)
{
ioctl(fd, USBDEVFS_CONTROL, ref setup);
close(fd);
}
else
{
throw CreateNativeException();
}
byte currentInterface = ((byte *)setup.data)[0];
fixed(byte *interfaceDescriptors = otherDescriptors)
{
var descriptorPtr = (InterfaceDescriptor *)interfaceDescriptors;
int currentIndex = 0;
while (currentIndex < otherDescriptors.Length)
{
var descriptor = *descriptorPtr;
if (descriptor.bDescriptorType.HasFlag(DescriptorType.Interface))
{
if (descriptor.bInterfaceNumber == currentInterface)
{
var end = currentIndex + sizeof(InterfaceDescriptor);
return(new LinuxDeviceInterface(descriptor, devname, otherDescriptors[currentIndex..^ 0]));
public static extern int ioctl(int filedes, UIntPtr request, ref usbfs_ctrltransfer value);
public static extern int ioctl(int filedes, UIntPtr command, ref usbfs_ctrltransfer value);
