Realtek SD Card Reader RTS5227

[TrevorH]

I don't have that card reader so I cannot see what else needs to be loaded from that POV but my mmc slot does work and my machine has mmc_core, sdhci, sdhci_pci, sd_mod and sg loaded. I don't see any other modules that look like they might be involved. Are those all listed in lsmod?

I see on my machine that /dev/mmcblk0 is only created when there is a card in the slot.

[plobb]

The following modules are listed with lsmod "mmc_core, rtsx_pci, rtsx_pci_sdmmc, sg, rtsx_pci_ms".
The two modules "sdhci" and "sdhci_pci" are missing, could this be the problem?

[TrevorH]

No idea, try modprobe'ing them and see if it helps.

[plobb]

found a "working" module with other distri live cd.
i used "mmc_block", now there is something in messages while inserting a card.

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Oct 21 21:14:36 bumfbook kernel: mmc0: cannot verify signal voltage switch
Oct 21 21:14:36 bumfbook kernel: mmc0: error -95 whilst initialising SD card

any ideas for the new failure?

[TrevorH]

No, sorry, rings no bells here.

[plobb]

The slot is still not working...is anyone out there how can help me?

[AlanBartlett]

Please show just the relevant lines for the device as output by --

lspci -nn

I would like to see the device's Vendor:Device ID pairing.

[plobb]

Hi, thanks for your reply. Found the "solution/problem" a few seconds ago.
Updating to 3.17.4-2.el7.elrepo.x86_64 fixed the problem for me at the moment.

The line you wanted..

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02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader [10ec:5227] (rev 01)

I need to use the kernel 3.10 for other applications, so let me know any solutions.

Thx

[AlanBartlett]

You have pre-empted what would have been my suggestion, once I had sight of the device's Vendor:Device ID pairing!

Using the "double grep" technique, I see --

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[Duo1 ~]$ grep -i 10ec /lib/modules/*/modules.alias | grep 5227
/lib/modules/3.10.0-123.9.3.el7.x86_64/modules.alias:alias pci:v000010ECd00005227sv*sd*bcFFsc*i* rtsx_pci
/lib/modules/3.17.4-2.el7.elrepo.x86_64/modules.alias:alias pci:v000010ECd00005227sv*sd*bcFFsc*i* rtsx_pci
/lib/modules/3.18.0-0.rc7.el7.elrepo.x86_64/modules.alias:alias pci:v000010ECd00005227sv*sd*bcFFsc*i* rtsx_pci
[Duo1 ~]$

If you intend to continue to use the kernel-ml package, I would advise that you --

(1) edit the /etc/sysconfig/kernel file so that its last line reads DEFAULTKERNEL=kernel-ml
(2) subscrube to the ELRepo Users' mailing list (a low traffic list) so that you receive notifications of each new kernel release

[plobb]

The output is...

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/lib/modules/3.10.0-123.8.1.el7.x86_64/modules.alias:alias pci:v000010ECd00005227sv*sd*bcFFsc*i* rtsx_pci
/lib/modules/3.10.0-123.9.2.el7.x86_64/modules.alias:alias pci:v000010ECd00005227sv*sd*bcFFsc*i* rtsx_pci
/lib/modules/3.10.0-123.9.3.el7.x86_64/modules.alias:alias pci:v000010ECd00005227sv*sd*bcFFsc*i* rtsx_pci
/lib/modules/3.10.0-123.el7.x86_64/modules.alias:alias pci:v000010ECd00005227sv*sd*bcFFsc*i* rtsx_pci
/lib/modules/3.17.4-2.el7.elrepo.x86_64/modules.alias:alias pci:v000010ECd00005227sv*sd*bcFFsc*i* rtsx_pci

when using the new kernel-ml, i'll run into new problems, like compiling virtualbox modules etc.
so i will try to fix the problem with the kernel delivered with centos first.

or you can tell me the location of kernel-ml-headers, there is nothing in /usr/src/kernel