1

I often use lspci -v to check the LKM in use for particular hardware device. LKMs are listed as "Kernel modules" and can be seen with lsmod. However, what is a "Kernel driver"? For example here:

bcma-pci-bridge on in lspci output

Is the "bcma-pci-bridge" a module built into kernel(I'm using 3.11.0) and thus it's not loadable and thus it will not appear in lsmod, can not be unloaded with modprobe -r or checked with modinfo?

Improve this question
2
  • 1
    What does lspci -k show for it? Commented Oct 27, 2013 at 17:27
  • @jordanm lspci -k shows also "bcma-pci-bridge". Commented Oct 27, 2013 at 17:54

1 Answer 1

Reset to default
2

From checking /boot/config-3.11.0-13-generic (yours might be different), I would guess that it's built into the kernel, thus you can't unload/reload it.

$ grep -i BCMA /boot/config-3.11.0-13-generic 
[...]
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_PCI=y
[...]
Improve this answer
2
  • I have exactly the same configuration options in /boot/config-3.11.0-12-generic. This means that if I want to use some other driver for this particular Wi-Fi card, I need to recompile the kernel? Commented Oct 27, 2013 at 17:58
  • 1
    @Martin - I would assume so. Commented Oct 27, 2013 at 20:12

You must log in to answer this question.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.