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* nothing happens upon SD card insertion (Asus Zenbook UM425IA, RTS522A)
@ 2021-12-25 10:45 Julian Sikorski
  2021-12-28 17:06 ` Ulf Hansson
  0 siblings, 1 reply; 5+ messages in thread
From: Julian Sikorski @ 2021-12-25 10:45 UTC (permalink / raw)
  To: linux-mmc

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)


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


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2021-12-30  9:25 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-12-25 10:45 nothing happens upon SD card insertion (Asus Zenbook UM425IA, RTS522A) Julian Sikorski
2021-12-28 17:06 ` Ulf Hansson
2021-12-29  3:36   ` Ricky WU
2021-12-29  8:48     ` Julian Sikorski
     [not found]       ` <56424bcaea61409ead3075702b92bca1@realtek.com>
2021-12-30  9:25         ` Julian Sikorski

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