Hauppauge WinTV MiniStick firmware not loading

Hi,

I have a Hauppauge WinTV MiniStick that wouldn't work anymore with recent linux kernels. Right now I'm running kernel version 3.10.6 in Arch Linux. Plugging the device results in

usb 1-1.5.1: new high-speed USB device number 9 using ehci-pci smscore_load_firmware_family2: line: 986: sending MSG_SMS_DATA_VALIDITY_REQ expecting 0xcfed1755
smscore_onresponse: line: 1565: MSG_SMS_DATA_VALIDITY_RES, checksum = 0xcfed1755

instead of

smscore_set_device_mode: firmware download success:
sms1xxx-hcw-55xxx-dvbt-02.fw

Other people reported the same issue:
* https://bbs.archlinux.org/viewtopic.php?pid=1309369
* https://bugzilla.kernel.org/show_bug.cgi?id=60645

I would appreciate any help on getting this problem fixed.

Thanks,
Christoph