> I am trying to understand the audiostix2 schematic(its a part of my project
> to make a custom daughter card), and i can't see, to which pins(of the
> gumstix 60pin-hirose) do the UCB1400 GPIOs, 4 touchscreen o/ps and 4 UCB A/D
> lines map to.. I guess it must be to some of the UART(BT/FF/HW) pins given
> in the breakout port (schematic) of audiostix2.
Nope. The UCB1400 GPIO's etc are not present on the 60-pin connector,
because the UCB1400 is on the audiostix2 board. It connects to the
gumstix through the SDATA_IN/SDATA_OUT/BITCLK/SYNV/NACRESET lines on
the 60 pin connector.
> and one more Q, no info on touchscreen intrefacing has been given? Has
> anyone used the touchscreen controller part of UCB1400.
I haven't used it myself. I think that the kernel has some support.
Look in linux-2.6.18gum/drivers/mfd.
I see a ucb1x00-ts.c, but I don't know how to use it.
Vancouver, BC, Canada