diff options
Diffstat (limited to 'core/android.cpp')
| -rw-r--r-- | core/android.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/core/android.cpp b/core/android.cpp index d9dbf27e2..865a0ad7e 100644 --- a/core/android.cpp +++ b/core/android.cpp @@ -112,6 +112,7 @@ int get_usb_fd(uint16_t idVendor, uint16_t idProduct) jint num_devices = deviceMap.callMethod<jint>("size", "()I"); if (num_devices == 0) { // No USB device is attached. + LOG("usbManager says no devices attached"); return -1; } @@ -124,11 +125,13 @@ int get_usb_fd(uint16_t idVendor, uint16_t idProduct) usbDevice = deviceMap.callObjectMethod ("get", "(Ljava/lang/Object;)Ljava/lang/Object;", usbName.object()); vendorid = usbDevice.callMethod<jint>("getVendorId", "()I"); productid = usbDevice.callMethod<jint>("getProductId", "()I"); + LOG(QString("Looking at device with VID/PID %1/%2").arg(vendorid).arg(productid)); if(vendorid == idVendor && productid == idProduct) // Found the requested device break; } if (i == num_devices) { // No device found. + LOG(QString("Didn't find device matching %1/%2").arg(idVendor).arg(idProduct)) errno = ENOENT; return -1; } @@ -138,6 +141,7 @@ int get_usb_fd(uint16_t idVendor, uint16_t idProduct) // You do not have permission to use the usbDevice. // Please remove and reinsert the USB device. // Could also give an dialogbox asking for permission. + LOG("usbManager tells us we don't have permission to access this device"); errno = EPERM; return -1; } @@ -147,6 +151,7 @@ int get_usb_fd(uint16_t idVendor, uint16_t idProduct) QAndroidJniObject usbDeviceConnection = usbManager.callObjectMethod("openDevice", "(Landroid/hardware/usb/UsbDevice;)Landroid/hardware/usb/UsbDeviceConnection;", usbDevice.object()); if (usbDeviceConnection.object() == NULL) { // Some error occurred while opening the device. Exit. + LOG("usbManager said we had permission to access, but then opening the device failed"); errno = EINVAL; return -1; } @@ -155,6 +160,7 @@ int get_usb_fd(uint16_t idVendor, uint16_t idProduct) fd = usbDeviceConnection.callMethod<jint>("getFileDescriptor", "()I"); if (fd == -1) { // The device is not opened. Some error. + LOG("usbManager said we successfully opened the device, but the fd was -1"); errno = ENODEV; return -1; } |