First. Many thanks Mark for a such great tool.

In AC-mode everything works fine.
But in DC-Mode the player acknowledge "Empire: xxSongs enqueued" but
there are no playlist-entries at all.
What is going wrong?

Thanks
Andy

Thanks! Ensure that your Hijack setting for "Serial Port Assignment" is set to "Player Uses Serial Port". If you have used gpsapp or some other external serial device it may be set otherwise. This would account for the problem you're describing.

Bingo !!!

That was it.
Problem solved

Thanks
Andy

And of course, I should still hack the kernel to fix this the right way; Neither the player nor palantir is coming anywhere near the serial hardware.

Ah, are you talking about the redirection of the physical serial port to another device, and fooling the player into thinking it's actually connected to the serial port (so it can still listen to /proc/empeg_notify) ? This would be cool.

It shouldn't be that hard, it just never quite makes it to the top of my pile of work.

Hey, dbrashear, ust wondering if this could be investigated anytime soon, there will be a use for both serial port comm and /proc/empeg_notify in the near future. Or did something change that I was not aware of that would allow me to insert commands to the player AND use the serial port at the same time? If you're too busy, maybe point out what changes need to be made and maybe it can be implemented by someone else. Having access to both will be cool!

there will be a use for both serial port comm and /proc/empeg_notify in the near future.

There has been a use for one for like the last 18 months or more. GPSapp wanted a serial port and didn't give a rat's a... about injecting buttons to the player, while palantir didn't need a serial port ever.

Presumably the kernel needs to
1) catch opens of the serial port from the player and fake success
and then
2) send i/o from /proc/empeg_notify to the opened "serial port" the player has.

This would actually be easier to look at and do if I weren't severely demoralized by everything I touch failing to work, something which has been going on for about the last 8 days (and before that I was so busy as to not have time; I am actually just as crushed, but have stopped making forward progress on anything, making things even better.)

Sorry to hear that, I've definately had weeks like that, too (who knew re-tiling my floor would end up with me installing a new kitchen sink?). Hope you snap out of your funk, and thanks for the answer!

Extra fun: 30 minutes ago I lifted a few of the new tiles on my bathroom floor and found another rotted floorboard underneath. So I guess It's time to cut out and replace another floorboard, and replace the bathroom floor again :-\