archive mirror
 help / color / mirror / Atom feed
From: David Mathog <>
Subject: Re: lspci shpchp and /sys vs /lib/modules questions
Date: Mon, 16 Mar 2020 15:06:00 -0700	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On 2020-03-16 14:11, David Mathog wrote:
> Things I do not understand:

4. lspci -k:
00:0a.0 PCI bridge: Broadcom HT2100 PCI-Express Bridge (rev a2)
         Kernel driver in use: pcieport
         Kernel modules: shpchp


grep -i pcieport /lib/modules/*/modules.builtin
grep -i pcieport /lib/modules/*/modules.alias

Yet there are reciprocal links here:

ls -al /sys/bus/pci/drivers/pcieport/0000:00:0a.0
lrwxrwxrwx 1 root root 0 Mar 16 14:25 
/sys/bus/pci/drivers/pcieport/0000:00:0a.0 -> 
  ls -al /sys/devices/pci0000:00/0000:00:0a.0/driver
lrwxrwxrwx 1 root root 0 Mar 16 15:03 
/sys/devices/pci0000:00/0000:00:0a.0/driver -> 

Not builtin, not a module, yet still a driver!  Where did it come from?


David Mathog
Manager, Sequence Analysis Facility, Biology Division, Caltech

      reply	other threads:[~2020-03-16 22:06 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <>
2020-03-16 21:11 ` lspci shpchp and /sys vs /lib/modules questions David Mathog
2020-03-16 22:06   ` David Mathog [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).