Hi, I just installed p910nd for printing over the USB port, but there are no usb devices:
root@OpenWrt:~# ls -l /dev/usb/
ls: /dev/usb/: No such file or directory
root@OpenWrt:~# lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux 5.10.41 xhci-hcd xHCI Host Controller
Bus 001 Device 001: ID 1d6b:0002 Linux 5.10.41 xhci-hcd xHCI Host Controller
root@OpenWrt:~# dmesg | grep usb
[ 0.043874] usbcore: registered new interface driver usbfs
[ 0.043911] usbcore: registered new interface driver hub
[ 0.043945] usbcore: registered new device driver usb
[ 0.085432] mtk-tphy 1a0c4000.usb-phy: failed to get ref_clk(id-1)
[ 1.616864] xhci-mtk 1a0c0000.usb: xHCI Host Controller
[ 1.622108] xhci-mtk 1a0c0000.usb: new USB bus registered, assigned bus number 1
[ 1.631187] xhci-mtk 1a0c0000.usb: hcc params 0x01403198 hci version 0x96 quirks 0x0000000000210010
[ 1.640286] xhci-mtk 1a0c0000.usb: irq 36, io mem 0x1a0c0000
[ 1.654517] xhci-mtk 1a0c0000.usb: xHCI Host Controller
[ 1.659772] xhci-mtk 1a0c0000.usb: new USB bus registered, assigned bus number 2
[ 1.667180] xhci-mtk 1a0c0000.usb: Host supports USB 3.0 SuperSpeed
[ 1.673503] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 8.800212] usbcore: registered new interface driver btusb
[ 5352.444837] usbcore: registered new interface driver usblp
root@OpenWrt:~# opkg list-installed | grep usb
kmod-usb-core - 5.10.41-1
kmod-usb-printer - 5.10.41-1
kmod-usb-xhci-hcd - 5.10.41-1
kmod-usb3 - 5.10.41-1
libusb-1.0-0 - 1.0.24-4
usbutils - 014-1
What do I need to check?