Most recent kernel where this bug did not occur: 2.6.12 Distribution: Gentoo Hardware Environment: AMD Athlon XP, Abit NF7-S (nforce 2) motherboard, a no-name 4-in-1 card reader - lsusb -v gives: idVendor 0x07cc Carry Computer Eng., Co., Ltd idProduct 0x0360 iManufacturer 1 Ltd iProduct 2 Winter Ver1.3 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk (Zip) iInterface 4 1.06.05.0331 Problem Description: The green LED (indicating something like power-on state of the reader, but it turns on at system startup and not during POST) at the front doesn't stop shining after shutdown, although it does on shutdown of linux 2.6.12 and older (about a second or two before complete poweroff) and windows. The motherboard doesn't allow to turn off the power of the onboard USB header, which the reader is connected to. I've tried to compile with usb and scsi stuff as modules, but still no effect. I've also tried the kororaa livecd, as far as I remember based on kernel version 2.6.13 or 2.6.14, and the effect was exactly the same.
This looks like a duplicate of bug #5276. It probably is caused by changes in the way the system turns off main power when it shuts down and has nothing to do with the USB drivers.
Thanks alan for finding that bug number, I was looking for it... *** This bug has been marked as a duplicate of 5276 ***