I’ve posted previously about my embedded device and picolcd. I wanted to put some thoughts down about using picolcd.
The easiest way to drive your picolcd is with lcdproc I’ve found. The device doesn’t require any special drivers which is great, as long as you have USB support working you’re fine. Make sure uhci-hcd and usbcore are loaded, you should be able to use ehci-hcd as well as it supports USB 1.1 and 2.0 but I haven’t tested that.
Use lsusb to make sure that the device is shown and recognised. If you see:
Bus 002 Device 003: ID 04d8:0002 Microchip Technology, Inc.
then great. Your device is connected, working and your machine supports USB.
(more…)
Tags: drivers, ehci-hcd, embedded, lcdproc, libhid, liblcdusb, libusb, lsusb, pico lcd, picolcd, picolcd on linux, routerboard, uhci-hcd, usb, usbcore