* question about v4l2_i2c_new_subdev_board
@ 2018-08-14 6:00 Zhang, Ning A
0 siblings, 0 replies; only message in thread
From: Zhang, Ning A @ 2018-08-14 6:00 UTC (permalink / raw)
To: mchehab, hverkuil; +Cc: linux-kernel, linux-media
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.
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2018-08-14 6:02 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-08-14 6:00 question about v4l2_i2c_new_subdev_board Zhang, Ning A
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).