cygwin error device or resource busy Post: 302354593

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Special Forums UNIX Desktop Questions & Answers cygwin error device or resource busy Post 302354593 by Corona688 on Friday 18th of September 2009 06:00:24 PM

09-18-2009

Registered User

Hm.

For one thing, you're not reading anything, how can you even tell if the device answers? It might be waiting for data to get read from it before it'll do anything else.

For another thing, maybe it needs carriage returns, which UNIX usually doesn't provide or use. You can force echo to produce them of course...

Code:

# Open ttyS2 for reading and writing as FD 5
exec 5<>/dev/ttyS2
# Leave this running in the background
cat <&5 &
# Write a command to FD 5
echo -en "AT\r\n" >&5
sleep 3
echo -en "AT+CMGF=1\r\n" >&5
sleep 3
echo -en "AT+CMGS=\"333xxxxxxx\"\r\n" >&5
sleep 3
# Is this supposed to have a carriage return + linefeed?  Not sure.
echo -en "ciao\x1a\r\n" >&5

It'd be good to know if the serial device is producing any response at all, working or not... Does it print anything when you type in the AT command in PuTTY? I'd start with that, just get that working, and add other bits once I know I have that.

Last edited by Corona688; 09-18-2009 at 07:05 PM..

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amorad

AMORAD(8)						     A Remote Mobile Assistant							 AMORAD(8)

NAME

       amorad - Amora (A Remote Mobile Assistant) daemon

SYNOPSIS

       amorad [options]

DESCRIPTION

       Amora  is an application that enables you to control your PC desktop using a cellphone. It uses bluetooth to send mouse and keyboard events
       to the graphical session. With it you can control your slides in OpenOffice.org, movies or any other application. Amora also has a  screen-
       shot feature, where you can see a thumbnail in the cellphone screen of the currently focused window in your desktop.

       The  server (amorad) is written in C using Xlib and XTest to send events for X session and the POSIX socket API for I/O. It must be started
       by the user, inside a valid X session.

OPTIONS

       -h     Help (usage) message

       -l     Set a specific path for the log file

       -v     Show program version and exit

AMORA CLIENT

       In order to use amora, you need a mobile phone with amora-client installed and running. The current client is implemented in Python for S60
       (Nokia cellphones).

BUGS

       See the current bugs and open new ones in the project website.

CREDITS

       Author: Adenilson Cavalcanti da Silva

       Contributions from: Ademar de Souza Reis Jr., Alexis Younes, Thiago Marcos Santos, Wilson Prata and others;

SEE ALSO

       http://code.google.com/p/amora/

amorad manpage							    2007-11-11								 AMORAD(8)