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When I connect my laptop to my Android phone, the computer aways shows me this error :

1827    Data Router             usb connection is true
1827    Data Router             DSR is on Don't send DTR on

My phone is galaxy II with Android 4.03.

According to my search:

DSR=Data Set Ready    DCE (Data Carrier Detect) is ready to receive commands or data.
DTR=Data Terminal Ready  Indicates presence of DTE to DCE.
Swayam
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user504909
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  • I too wish to know how to fix this. – user1378730 May 29 '12 at 10:20
  • I think is debug spam samsung left visible in logcat, you also get a lot of spam about luminosity sensor – sherpya Aug 13 '12 at 01:20
  • DSR, DCE, and DTR are all signal conditions for the RS-232 communications standard. They do not really have a place in the USB world though it may be that your phone to laptop communication is going through a USB to Serial Communications port converter in which the USB supports a virtual Serial Communications port device. For Serial Communications there are two entities, the Data Set and the Data Terminal which are communicating over the physical multi-stranded cable. DSR and DTR lines were raised or lowered depending on whether the DS or the DT were read to receive bytes. – Richard Chambers Aug 27 '12 at 00:27

1 Answers1

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This is not an application error, this is spam in your log from the system. It's okay to ignore unless you're working on the phone's hardware.

Trevor Johns
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    shouldnt i be concerned regarding unnecessary use of resources? shouldnt i look to configure what is in conflict to stop attempting whatever it is? tks – tony gil Mar 14 '13 at 19:44