<!DOCTYPE html> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body> Hi I have a situation where I have a ublox modem, the LISA u200, wired up using its SPI bus as the communication channel. On the DTE side is a raspberry pi SBC with a custom spi platform driver that exposes a tty device for modem. This driver is not capable of multiplexing and exposing multiple virtual channels. To overcome this I have a user mode daemon that performs this function by connection to the single tty port exposed by the spi driver and in turn creating 5 pseudo tty's (/dev/ptty1 -> /dev/ptty5) to interact with. These are actually links to /dev/pts/1 to /dev/pts/5. I want the ublox plugin to manage this device but there seems to be no way to filter/grab those ports. Regards </body> </html>