What: /sys/class/net//qmi/raw_ip Date: Dec 2015 KernelVersion: 4.4 Contact: Bjørn Mork Description: Boolean. Default: 'N' Set this to 'Y' to change the network device link framing from '802.3' to 'raw-ip'. The netdev will change to reflect the link framing mode. The netdev is an ordinary ethernet device in '802.3' mode, and the driver expects to exchange frames with an ethernet header over the USB link. The netdev is a headerless p-t-p device in 'raw-ip' mode, and the driver expects to echange IPv4 or IPv6 packets without any L2 header over the USB link. Userspace is in full control of firmware configuration through the delegation of the QMI protocol. Userspace is responsible for coordination of driver and firmware link framing mode, changing this setting to 'Y' if the firmware is configured for 'raw-ip' mode. What: /sys/class/net//qmi/add_mux Date: March 2017 KernelVersion: 4.11 Contact: Bjørn Mork Description: Unsigned integer. Write a number ranging from 1 to 254 to add a qmap mux based network device, supported by recent Qualcomm based modems. The network device will be called qmimux. Userspace is in charge of managing the qmux network device activation and data stream setup on the modem side by using the proper QMI protocol requests. What: /sys/class/net//qmi/del_mux Date: March 2017 KernelVersion: 4.11 Contact: Bjørn Mork Description: Unsigned integer. Write a number ranging from 1 to 254 to delete a previously created qmap mux based network device. What: /sys/class/net//qmap/mux_id Date: January 2021 KernelVersion: 5.12 Contact: Daniele Palmas Description: Unsigned integer Indicates the mux id associated to the qmimux network interface during its creation. What: /sys/class/net//qmi/pass_through Date: January 2021 KernelVersion: 5.12 Contact: Subash Abhinov Kasiviswanathan Description: Boolean. Default: 'N' Set this to 'Y' to enable 'pass-through' mode, allowing packets in MAP format to be passed on to the stack. Normally the rmnet driver (CONFIG_RMNET) is then used to process and demultiplex these packets. 'Pass-through' mode can be enabled when the device is in 'raw-ip' mode only.