可以使用Android的USB主机功能和PC上的虚拟串口驱动程序来实现此功能。首先,在Android代码中使用USB主机API设置USB连接并打开输出端点,然后将IRP包发送到PC上的虚拟串口。在PC上,安装虚拟串口驱动程序并将其设置为接收IRP包。一旦接收到IRP包,PC就会从休眠状态下唤醒并执行指定的操作。
以下是代码示例,用于在Android上发送IRP包:
UsbManager manager = (UsbManager) getSystemService(Context.USB_SERVICE);
UsbDevice device = (UsbDevice) getIntent().getParcelableExtra(UsbManager.EXTRA_DEVICE);
UsbDeviceConnection connection = manager.openDevice(device);
UsbInterface intf = device.getInterface(0);
UsbEndpoint endpoint = intf.getEndpoint(1);
byte[] packet = {0x51, 0x52, 0x53, 0x54};
connection.controlTransfer(0x40, 0x05, 0x0000, 0x0000, packet, packet.length, 0);
connection.bulkTransfer(endpoint, packet, packet.length, 0);
在PC上,安装虚拟串口驱动程序并使用以下代码接收IRP包:
HANDLE hCom = CreateFile(_T("\\\\.\\COM1"), GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
DCB dcb;
GetCommState(hCom, &dcb);
dcb.BaudRate = CBR_115200;
dcb.ByteSize = 8;
dcb.StopBits = ONESTOPBIT;
dcb.Parity = NOPARITY;
SetCommState(hCom, &dcb);
PurgeComm(hCom, PURGE_RXCLEAR);
DWORD dwBytesRead;
BYTE buffer[256];
ReadFile(hCom, buffer, sizeof(buffer), &dwBytesRead, NULL);