I'm trying to use a Conexant USB modem from a C program. The modem is located at /dev/ttyACM0
.
In the source code I send the AT
, then ATZ
to reset the modem. I receive the response:
$ sudo ./modem.exe
Send 2: AT
Read 8: 0x41 0x8 0x20 0x8 0x54 0x8 0x20 0x8
Send 3: ATZ
Read 12: 0x41 0x8 0x20 0x8 0x54 0x8 0x20 0x8 0x5a 0x8 0x20 0x8
I'm having trouble with the response codes. Additionally, the codes don't appear to be documented at Hayes Command Set or in an old US Robotics manual I have.
What are the meaning of the response code?