Commit 09223865 authored Aug 01, 2017 by Dmitry Torokhov Committed by Jiri Kosina Aug 02, 2017

HID: input: optionally use device id in battery name



Manufacturers do not always populate serial number in their devices, so
let's fall back to device ID when forming the battery device name. As a
result, batteries in devices without serial number will be named like
this:

	hid-0018:2D1F:510E.0001-battery

(as opposed to hid--battery for the first one, and failing to create
batteries for the subsequent ones).

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

parent 581c4484

drivers/hid/hid-input.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -456,7 +456,9 @@ static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
		if (!psy_desc)
		return -ENOMEM;

		psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
		psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery",
		strlen(dev->uniq) ?
		dev->uniq : dev_name(&dev->dev));
		if (!psy_desc->name) {
		error = -ENOMEM;
		goto err_free_mem;