+ Ricky and Rui, On Sat, 25 Dec 2021 at 11:50, Julian Sikorski <belegdol@xxxxxxxxx> wrote: > > Hello, > > I have an Asus Zenbook UM425IA laptop with Realtek RTS522A card reader: > > 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A > PCI Express Card Reader (rev 01) Hi Julian, I assume that means you are using the drivers/mmc/host/rtsx_pci_sdmmc.c. So, I have looped in some of the main authors to this mmc/sd driver. Let's see if they can help in some way. Kind regards Uffe > > > Almost every time when I insert a card into it, nothing happens - no > dmesg message or anything. > > echo 1 | sudo tee -a /sys/kernel/debug/tracing/events/mmc/enable > > sudo cat /sys/kernel/debug/tracing/trace_pipe > mmc_trace.txt > > also results in an empty file. If I am lucky, the card will be detected > after some delay and the following will appear in the log: > > Dez 25 11:34:41 snowball3 kernel: mmc0: cannot verify signal voltage switch > > Dez 25 11:34:41 snowball3 kernel: mmc0: new ultra high speed SDR50 SDHC > card at address aaaa > > Dez 25 11:34:41 snowball3 kernel: mmcblk0: mmc0:aaaa SL32G 29.7 GiB > > Dez 25 11:34:41 snowball3 kernel: mmcblk0: p1 > > > How can I investigate this further? As things stand now, the reader is > almost unusable. I am using 5.15.11-200.s0ix01.fc35.x86_64 kernel. Thank > you in advance. > > Best regards, > Julian >
