Cheroh dpheel
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| /* | |
| * A driver for the Griffin Technology, Inc. "PowerMate" USB controller dial. | |
| * | |
| * v1.1, (c)2002 William R Sowerbutts <will@sowerbutts.com> | |
| * | |
| * This device is a anodised aluminium knob which connects over USB. It can measure | |
| * clockwise and anticlockwise rotation. The dial also acts as a pushbutton with | |
| * a spring for automatic release. The base contains a pair of LEDs which illuminate | |
| * the translucent base. It rotates without limit and reports its relative rotation | |
| * back to the host when polled by the USB controller. |