Philips Wearable Audio Player (128) fails to attach

dmesg:
	umass0: Philips Wearable Audio Player (128 MB), rev 1.10/0.01, addr 2
	usbd_setup_pipe: failed to start endpoint, IOERROR
	device_attach: umass0 attach returned 6

usbdevs -v:
	Controller /dev/usb0:
	addr 1: full speed, self powered, config 1, OHCI root
	hub(0x0000), SiS(0x0000), rev 1.00
	port 1 powered
-->	port 2 addr 2: full speed, self powered, config 1, product 0x0142(0x0142), vendor 0x0471(0x0471), rev 0.01
	port 3 powered


Can't figure out, why this happens. Found some code-snippets for this
player in the bug-database, which add some quirks for device-handling,
but they didnt work.

Hannes