At 4:15 PM -0400 2000/06/07, [EMAIL PROTECTED] wrote:
>Jim, thanks! That should do fine (and no need for me to fiddle deep in the hardware).
>Any reason this call ISN'T documented? Seems to be a very useful feature for those of
>us developing hardware add-ons to be able to check the status of the GP2 pin.
It's documented for use by our licensees and by the OS as a System Use Only function.
This allows us to change or deprecate the API as necessary with a limited affected
audience. There are LOTS of internal APIs we do not wish to support.
>Now of course you have no obligation to answer and I know it might change in the
>future, but do you know what the difference is between the hwrDockStatusModemAttached
>and the hwrDockStatusDockAttached flags? Do they both refer to pin GP2 or two
>different signals? I know that on a Palm V the voltage level driven on GP2 (called
>"I2" on the V) indicates what type of device is connected: charger or modem. But what
>is a generic "dock"? Is it set when anything other than nothing is detected? Hmm.
Some device hardware can tell when there's a modem attached, some can tell when
there's a dock attached, and some have no idea when or if anything is attached.
Remember, we're talking about licensee's hardware too, not just Palm's -- the details
of the implementations vary among devices. On the Palm V, for example, the SPI bus is
used to detect when the device is in the cradle as well as when it's charging, so it's
not always a simple GPIO pin used to detect these things.
Regards,
Jim Schram
Palm Incorporated
Partner Engineering
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