Laptop SD memory reader - Solved

Luciano Mannucci luciano at
Fri Sep 4 14:14:15 UTC 2020

On Fri, 4 Sep 2020 01:41:25 +0200
Polytropon <freebsd at> wrote:

> Check if your specific laptop requires loading of a acpi_*
> module - I had to do this on a Lenovo laptop in order to get
> the internal SD card reader working. In your case, try:
> 	# kldload acpi_toshiba.ko
> or add the corresponding entry to /boot/loader.conf:
> 	acpi_toshiba_load="YES"
I installed the rtsx drivers from the ports, added 


to /boot/loader.conf, and...

> After system restart, check for a da device corresponding to
> the card reader.
Yes, after the system restart, if I insert an SD card in the reader,
I get, in /var/log/messages

rtsx0: Interrupt card inserted/removed
rtsx0: Card present
mmc0: <MMC/SD bus> on rtsx0
mmcsd0: 32GB <SDHC SE32G 8.0 SN 0CD896B3 MFG 04/2014 by 3 SD> at mmc0 50.0MHz/4bit/256-block

camcontrol devlists doesn't notice anything, but now I have a /dev
node that I can happily mount issuing

 mount -t msdosfs /dev/mmcsd0s1 /mnt

and it works!

Many thanks,

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