From: Billie Alsup <billie.alsup@gmail.com>
To: linux-newbie@vger.kernel.org
Subject: associating w1 bus masters to parent device
Date: Wed, 19 Aug 2020 18:11:00 -0700 [thread overview]
Message-ID: <BA6555F3-C73F-4D0F-A2D8-FABB3CAAE517@gmail.com> (raw)
I have hardware with multiple ds2482 devices (i2c to 1-wire bridge). Each instantiation of a ds2482 results in a new w1_bus_master%d device. However, I cannot figure out how to correlate the w1_bus_master%d device to the original ds2482 device (from user space looking at sysfs entries). Each master has the same type of device behind it (a ds2433 eeprom), but I still need to know which is which. The i2c devices (and thus the w1_bus_master%d devices) do not necessarily probe consecutively, so I can't just presume a mapping at any instance in time. Am I missing something? Currently on 4.9.189 (debian:9), but am planning to move to 4.19.118 (debian:10).
reply other threads:[~2020-08-20 1:11 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=BA6555F3-C73F-4D0F-A2D8-FABB3CAAE517@gmail.com \
--to=billie.alsup@gmail.com \
--cc=linux-newbie@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* 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 read-only IMAP folder(s) and NNTP newsgroup(s).