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[Linux] Add warning for users without required udev rule

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This commit is contained in:
Ash 2017-04-13 13:47:56 +10:00
parent 29fe7917a0
commit b94ed1cc9a
1 changed files with 17 additions and 1 deletions
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18
src/net/ash/HIDToVPADNetworkClient/hid/purejavahid/PureJavaHidDevice.java
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@ -25,10 +25,15 @@ import java.io.IOException;
import java.util.Arrays; import java.util.Arrays;
import lombok.Synchronized; import lombok.Synchronized;
import lombok.extern.java.Log;
import net.ash.HIDToVPADNetworkClient.hid.HidDevice; import net.ash.HIDToVPADNetworkClient.hid.HidDevice;
import net.ash.HIDToVPADNetworkClient.util.MessageBox;
import net.ash.HIDToVPADNetworkClient.util.MessageBoxManager;
import net.ash.HIDToVPADNetworkClient.util.Settings;
import purejavahidapi.HidDeviceInfo; import purejavahidapi.HidDeviceInfo;
import purejavahidapi.InputReportListener; import purejavahidapi.InputReportListener;
@Log
class PureJavaHidDevice implements HidDevice, InputReportListener { class PureJavaHidDevice implements HidDevice, InputReportListener {
private purejavahidapi.HidDevice myDevice = null; private purejavahidapi.HidDevice myDevice = null;
private final purejavahidapi.HidDeviceInfo myDeviceInfo; private final purejavahidapi.HidDeviceInfo myDeviceInfo;
@ -56,6 +61,7 @@ class PureJavaHidDevice implements HidDevice, InputReportListener {
return myDeviceInfo.getProductId(); return myDeviceInfo.getProductId();
} }
private static boolean hasShownUdevErrorMessage = false;
@Override @Override
public boolean open() { public boolean open() {
boolean result = true; boolean result = true;
@ -64,7 +70,17 @@ class PureJavaHidDevice implements HidDevice, InputReportListener {
myDevice.setInputReportListener(this); myDevice.setInputReportListener(this);
} catch (IOException e) { } catch (IOException e) {
result = false; result = false;
e.printStackTrace(); if (e.getMessage().contains("errno 13") && Settings.isLinux()) {
if (!hasShownUdevErrorMessage) {
hasShownUdevErrorMessage = true;
String msg = "Could not access HID devices.\nTo fix this, please add the following udev rule:\n\nKERNEL==\"hidraw*\", SUBSYSTEM==\"hidraw\", MODE=\"0664\", GROUP=\"plugdev\"\n\nThis will allow everyone to read from HIDs, and users in the group \"plugdev\" to read and write.\nIt's reccomended to add yourself to this group.\n\nHID To VPAD Network Client will be unable to use HIDs until this issue is resolved.";
MessageBoxManager.addMessageBox(new MessageBox(msg, MessageBox.MESSAGE_ERROR));
log.severe(msg);
e.printStackTrace();
}
} else {
e.printStackTrace();
}
} }
return result; return result;
} }