I'm using a Medion WIM2160 notebook with an onboard Realtek 8187b chipset (USB ID: 0bda:8189).
After tweaking the rtl-wifi driver to see that USB ID, it loads and recognizes the MAC address, but the device doesn't work and I get
phy1: hwaddr 00:07:ca:06:5a:ef, rtl8187 V0 + rtl8225
phy1: RF Calibration Failed! 0