2018-08-14 06:07:26

by Zhang, Ning A

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Subject: question about v4l2_i2c_new_subdev_board

Hello, Hans, Mauro

I find in source code: v4l2-common.c: v4l2_i2c_new_subdev_board(),
there is a comment:

/* Note: by loading the module first we are certain that c-
>driver
   will be set if the driver was found. If the module was not
loaded
   first, then the i2c core tries to delay-load the module for
us,
   and then c->driver is still NULL until the module is finally
   loaded. This delay-load mechanism doesn't work if other
drivers
   want to use the i2c device, so explicitly loading the module
   is the best alternative. */

I find it added by commit: f0222c7d860f09a61bec5e500539f28db0184b38

it was added at year 2009, is this still an issue in newer kernel, like
4.14?

BR.
Ning.