Hello there ... I had to produce this ugly one on fresh 5.5 release in order to get my cardreader operational.
diff on pcidevs : 5687a5688 > product REALTEK RTL8402 0x5286 RTL8402 Card Reader and diff on rtsx_pci.c : 61c61,62 < PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5229) --- > PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTS5229 || > PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RTL8402) tested with GENERIC.MP on amd64 with W310CZ-T notebook and SDHC card freshly extracted from my camera. Eric.