Yannis writes via Kernel.org Bugzilla: I have tested the patch proposed in https://marc.info/?l=linux-kernel&m=159665699504104&w=2 on the Intel NUC7CJYH (RTS5529 is the onboard card reader) and I can now read/write on SD cards again. This is under Ubuntu 20.04 with a standard Ubuntu 5.4.0-42-generic kernel. Thank you for the fix Chris. View: https://bugzilla.kernel.org/show_bug.cgi?id=204003#c17 You can reply to this message to join the discussion. -- Deet-doot-dot, I am a bot. Kernel.org Bugzilla (bugspray 0.1-dev)