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mik3y / usb-serial-for-android

Android USB host serial driver library for CDC, FTDI, Arduino and other devices.

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Every time the USB link is closed, an error log is printed

mengzhidaren opened this issue · comments

commented

D/UsbDeviceConnectionJNI( 4637): close
W/SerialInputOutputManager( 4637): Run ending due to exception: Connection closed
W/SerialInputOutputManager( 4637): java.io.IOException: Connection closed
W/SerialInputOutputManager( 4637): at com.hoho.android.usbserial.driver.CommonUsbSerialPort.testConnection(CommonUsbSerialPort.java:162)
W/SerialInputOutputManager( 4637): at com.hoho.android.usbserial.driver.FtdiSerialDriver$FtdiSerialPort.read(FtdiSerialDriver.java:156)
W/SerialInputOutputManager( 4637): at com.hoho.android.usbserial.util.SerialInputOutputManager.step(SerialInputOutputManager.java:225)
W/SerialInputOutputManager( 4637): at com.hoho.android.usbserial.util.SerialInputOutputManager.run(SerialInputOutputManager.java:203)
W/SerialInputOutputManager( 4637): at java.lang.Thread.run(Thread.java:761)

If the thread is closed after:

Run ending due to exception: Connection closed
java.io.IOException: Connection closed
at com.hoho.android.usbserial.driver.CommonUsbSerialPort.testConnection(CommonUsbSerialPort.java:162)
at com.hoho.android.usbserial.driver.FtdiSerialDriver$FtdiSerialPort.read(FtdiSerialDriver.java:156)
at com.hoho.android.usbserial.util.SerialInputOutputManager.step(SerialInputOutputManager.java:225)
at com.hoho.android.usbserial.util.SerialInputOutputManager.run(SerialInputOutputManager.java:203)
at java.lang.Thread.run(Thread.java:761)

commented

I will check if it can be distinguished into normal close and real IO error