You already adjusted your basic needs with help of the Basic config? Good. If your device has USB ports, here you see how to put it to good use.

• To obtain a very basic USB support under OpenWrt, see usb.essentials
• To obtain support for USB storage and mount a local filesystem please see usb.storage
  • To provide access to file system(s) on a storage device via network see the services Samba, NFS or SSH FS
  • To mount another / instead of the one located on the Flash, please see extroot
  • To execute a Kernel on external storage after booting a Kernel from flash, please see kexec
  • To install packages to a different location other then JFFS2, see opkg
• To install a printer and grant access to it from the net, see printer.overview.
• To obtain audio support (for an USB sound card), and run audio daemon, see usb.audio (WIP)
  • PulseAudio Since trunk 2011-01 we can install PulseAudio
  • For turn your router into an alarm clock (oldwiki)
• To obtain support for USB video streaming devices, usb.video
  • For a webcam, see webcam (WIP)
• To use a 3g/4g/UMTS/LTE USB Modem (UMTS Dongle) for WAN connection, please see 3gdongle
• To use your Bluetooth enabled phone in a PAN see Forum
• To connect a USB device to your OpenWrt router, but utilize drivers installed somewhere else (sic!), see usb.iptunnel
• To connect various devices (sensors, GPIO-expanders, ADCs, RTCs etc), see usb.i2c-tiny-usb