serial number

I'm running FreeBSD 14.3 and 15.0 on a RPi3 and RPi4, how can I read the MMC SDCard's serial number? doas camcontrol inquiry mmcsd0 doesn't work on the MMC. It complains: camcontrol: cam_lookup_pass: CAMGETPASSTHRU ioctl failed cam_lookup_pass: No such file or directory cam_lookup_pass...

Hi, FreeBSD guru! Is it possible at all to see which NIC is installed in which PCI slot by script ? As I know this may be something near the dmidecode and pciconf commands. But interesting to determine which exactly motherboard PCI slot are used for which NIC. I know that different...

Suppose I have two Kindles of the same model (but differing serial numbers, natch). I wish to open the particular Kindle that has a given serial number. The Kindles have been connected to the host in an arbitrary order. How do I open the right Kindle? Looking at /dev/ugen* (or /dev/usb/*), I...