[PATCH v5 0/2] i2c-tools: Make tools accept bus path

The purpose of this series is to make i2c-tools userspace utilities
accept an i2c bus character device file path as an argument. This is
useful, for example, if a sysadmin creates udev rules to create a
persistent symlink to an i2c bus and wishes to use that symlink with
i2c-tools.

Since v1:
 * Scrapped brittle checking against device major number 89 in favor of
   an i2c_bus_hint variant struct.
Since v2:
 * Scrapped i2c_bus_hint variant in favor of combining the lookup and
   open steps into one function. No more awkward variant.
Since v3:
 * Rebased onto `master` and fixed minor conflicts.
Since v4:
 * Inline much of the functionality of open_i2c_dev.
 * Where possible, make functions static.

Signed-off-by: Brigham Campbell <[email protected]>
---
Brigham Campbell (2):
      i2c-tools: Allow passing device file paths
      i2c-tools: Document device paths as I2CBUS arg

 tools/i2cbusses.c   | 127 ++++++++++++++++++++++++++++++----------------------
 tools/i2cbusses.h   |   3 +-
 tools/i2cdetect.8   |   8 ++--
 tools/i2cdetect.c   |  14 +++---
 tools/i2cdump.8     |   7 +--
 tools/i2cdump.c     |  14 +++---
 tools/i2cget.8      |   9 ++--
 tools/i2cget.c      |  13 +++---
 tools/i2cset.8      |  12 ++---
 tools/i2cset.c      |  13 +++---
 tools/i2ctransfer.8 |   2 +-
 tools/i2ctransfer.c |  13 +++---
 12 files changed, 120 insertions(+), 115 deletions(-)
---
base-commit: 5852f5375eea6ca9dabf31f4772cb8b8ecc905d8
change-id: 20260530-accept-device-path-539164c9c1df

Thanks!
-- 
Brigham Campbell
https://brighamcampbell.com