FS#8409 - Added iRiver H10 sliderbar functionality
This patch adds fairly decent support for the sliderbar on the front of the iRiver H10 series players. This functionality is prominently displayed on the H10 wiki as something that is significant and missing.
With this patch the user can slide his finger over the slider to produce a scrolling effect. Or, they may also tap or hold down the upper or lower 30% of the slider for the older up/down behaviour with auto-repeat provided by the common code. This basically mimics the OF's functionality.
The physical slider is very sensitive, so the values that come back from it are fairly spastic. I've attempted to tone down any wild behaviour, and I've added #defines in the patch that can be used to tune the behaviour. But frankly, even the user's thumb size will affect what "good" values are. I believe what I have is good for the time being, but more tweaking may be necessary as time goes on.
This task depends upon