I did a large upload overnight last night with the USB drivers, and it _almost_ went okay. FYI, I am using the 2.2.18pre21 kernel patched with the empeg module. I'm on a P3-666. Running emptool as root.
1. I'm averaging 56K/sec uploading to the unit. This seems to be pretty slow compared to what others are getting.
2. The sync crashed mid-way with a segmentation fault. When I turn on the player now, it waited a bit, while it rebuilds the database. If it does this every time I reboot, I may wipe the drive clean and start over tonight.
Some ideas:
Emptool is kind of hokey. I'm considering writing a filesystem driver that would allow you to mount the empeg via USB just like a hard drive, i.e. mount -t empegusb /dev/ttyUSB0 /mnt/empeg. That way you could use all the standard file utils when updating the empeg. At this point, this is a vaporware project, since I haven't even begun investigating it. I've done something quite similar with my Diamond Rio, so I know it's do-able.