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Code Issues Releases Wiki Activity

fix ch340 initialization

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This commit is contained in:
kai-morich 2020-02-03 20:36:56 +01:00
parent bbed92eafb
commit 2a77ebf8b9
1 changed files with 3 additions and 3 deletions
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6
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/Ch34xSerialDriver.java
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@ -123,15 +123,15 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
} }
private int controlOut(int request, int value, int index) { private int controlOut(int request, int value, int index) {
final int REQTYPE_HOST_TO_DEVICE = 0x41; final int REQTYPE_HOST_TO_DEVICE = UsbConstants.USB_TYPE_VENDOR | UsbConstants.USB_DIR_OUT;
return mConnection.controlTransfer(REQTYPE_HOST_TO_DEVICE, request, return mConnection.controlTransfer(REQTYPE_HOST_TO_DEVICE, request,
value, index, null, 0, USB_TIMEOUT_MILLIS); value, index, null, 0, USB_TIMEOUT_MILLIS);
} }
private int controlIn(int request, int value, int index, byte[] buffer) { private int controlIn(int request, int value, int index, byte[] buffer) {
final int REQTYPE_HOST_TO_DEVICE = UsbConstants.USB_TYPE_VENDOR | UsbConstants.USB_DIR_IN; final int REQTYPE_DEVICE_TO_HOST = UsbConstants.USB_TYPE_VENDOR | UsbConstants.USB_DIR_IN;
return mConnection.controlTransfer(REQTYPE_HOST_TO_DEVICE, request, return mConnection.controlTransfer(REQTYPE_DEVICE_TO_HOST, request,
value, index, buffer, buffer.length, USB_TIMEOUT_MILLIS); value, index, buffer, buffer.length, USB_TIMEOUT_MILLIS);
} }