tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
HID: explain out-of-range check better
Extend the comment explaining the condition for discarding
out-of-range values to clarify the cases in which devices don't
provide any logical min/max.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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drivers/hid/hid-input.c
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drivers/hid/hid-input.c
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/*
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* Ignore out-of-range values as per HID specification,
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* section 5.10 and 6.2.25
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* section 5.10 and 6.2.25.
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*
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* The logical_minimum < logical_maximum check is done so that we
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* don't unintentionally discard values sent by devices which
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* don't specify logical min and max.
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*/
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if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
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(field->logical_minimum < field->logical_maximum) &&