Hi, as Huawei modem opens 2 serial ports (in my case 3 serial ports) as COM9 stays for Application Interface, COM8 for UI and COM7 is named in device manager / modems' section for Huawei modem. I can't open COM7 and COM9 when I am connected to the Internet, from terminal - p[utty. I can open COM8 with putty but how to send to or receive from anything as in case of excellent MDMA application by ginggs? AT doesn't work for COM8. Sony vaio pcg-61312w driver/ download. Does it mean I shoud use special USSD library for a communication with COM8 to send/ receive binaries? Hi, as Huawei modem opens 2 serial ports (in my case 3 serial ports) as COM9 stays for Application Interface, COM8 for UI and COM7 is named in device manager / modems' section for Huawei modem. I can't open COM7 and COM9 when I am connected to the Internet, from terminal - p[utty. I can open COM8 with putty but how to send to or receive from anything as in case of excellent MDMA application by ginggs? AT doesn't work for COM8. Does it mean I shoud use special USSD library for a communication with COM8 to send/ receive binaries? Are you really serious? Give one right answer to let me go back to work. What I need to send USSD codes in opened Internet session under Linux, MS Vista? Looking for a library, API, command line tool, anything working. You are free to provide me with a nice solution for tests. Ginggs was so kind to discuss Huawei ports. Closed MDMA and it closed my Internet connection, so I can run putty with MDMA serial port to send USSD as AT command but no Internet. I am just a beginner. It works so for me, asking more questions and making intensive Google search I learn really faster. Any idea for sending USSD commands under Linux or sending USSD commands under MS Vista from a script, VB having Internet connection still opened? USSD standard is really old but Linux + USSD give no answer with a right package. Whats going wrong.I am not getting data at the recievers End. When writing communications code, start with some known methods for testing. Rather than tear your hair out do the following. Ensure machines are connected, with null modem if required 2. ![]() Problem while having a communication with serial port????? Tags: linux, programming: Login to Reply. Page 1 of 2: 1. Problem while having a communication with serial port????? Unix commands, linux commands, linux server, linux ubuntu, shell script, linux distros. Re: sending commands to serial port Sat Nov 02, 2013 12:04 am So pleased to find this page as I was having problems controlling my denon amp via serial and now I can control it via SSH with your script. Run terminal emulator on those serial ports at both ends 3. Confirm terminal emulators exchange characters 4. Replace the send end with your sending program and check that the sender does send. Stop that, and restart the terminal emulator 6. Stop the terminal emulator at the receiving end, start your receiving program 7. Confirm receiving program receives what ever is typed.
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