MicroSD-Reader on Yoga X1 3rd gen does not work

Michael Sierchio kudzu at tenebras.com
Tue Oct 15 18:10:36 UTC 2019

On Tue, Oct 15, 2019 at 10:44 AM Mathias Picker <
Mathias.Picker at virtual-earth.de> wrote:

> Hi all,
> I’m trying the MicroSD-Reader on my X1 Yoga for the first time,
> and get:
> Oct 15 19:31:35 Danton kernel: (da0:umass-sim0:0:0:0):
> READ(10). CDB: 28 00 0e e2 af c1 00 00 04 00
> Oct 15 19:31:35 Danton kernel: (da0:umass-sim0:0:0:0): CAM status:
> CCB request completed with an error
> Oct 15 19:31:35 Danton kernel: (da0:umass-sim0:0:0:0): Retrying
> command, 1 more tries remain
Hey, Matthias –

What is your kernel config? And/or are you loading the appropriate kernel
module?  And show the contents of /var/run/dmesg.boot

I have:

device          mmc                     # MMC/SD bus

device          mmcsd                   # MMC/SD memory card

device          sdhci                   # Generic PCI SD Host Controller


sdhci_pci0: <Generic SD HCI> mem 0xf7f27000-0xf7f270ff at device 20.7 on

sdhci_pci0: 1 slot(s) allocated

Without that, I get the probe on the CAM bus, but the device isn't

If everything checks out with the above, it may be work looking at the
kern.cam boot time sysctl vars

Hope that helps.

– M


"Well," Brahmā said, "even after ten thousand explanations, a fool is no
wiser, but an intelligent person requires only two thousand five hundred."

- The Mahābhārata

More information about the freebsd-questions mailing list