ttyUSBSpy
Rs232 Serial port spy for linux, only works over USB-Serial converter.
ttyUSBSpy is a serial port spy for linux, it works on usb-serial converters. It relays in the power of the usbmon module. tcpdump captures data betwen the usb and conversor chip and ttyUSBSpy filters the captured data and show the data and signals of
Rs232 port.