Hi Julian, We can't reproduce this issue on our side Can you check your socket is well and print more driver debug message? BR, Ricky > -----Original Message----- > From: Ulf Hansson <ulf.hansson@xxxxxxxxxx> > Sent: Wednesday, December 29, 2021 1:07 AM > To: Julian Sikorski <belegdol@xxxxxxxxx>; Ricky WU <ricky_wu@xxxxxxxxxxx>; > Rui Feng <rui_feng@xxxxxxxxxxxxxx> > Cc: linux-mmc@xxxxxxxxxxxxxxx > Subject: Re: nothing happens upon SD card insertion (Asus Zenbook UM425IA, > RTS522A) > > + 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 > > > ------Please consider the environment before printing this e-mail.