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device-supply: Assume USB type supplies the system

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The USB device type for power supplies are always USB ports of the
system. As such, we should be able to assume that they are power
supplies.

Fixes: #183
This commit is contained in:
Benjamin Berg 2022-05-16 10:56:20 +02:00 • committed by Benjamin Berg
parent b342964400
commit 6cfccef2ad
1 changed files with 14 additions and 7 deletions
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21
src/linux/up-device-supply.c
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@ -1062,15 +1062,22 @@ up_device_supply_guess_type (GUdevDevice *native,
type = UP_DEVICE_KIND_BATTERY;
} else if (g_ascii_strcasecmp (device_type, "USB") == 0) {
/* use a heuristic to find the device type */
if (g_strstr_len (native_path, -1, "wacom_") != NULL) {
type = UP_DEVICE_KIND_TABLET;
} else if (g_strstr_len (native_path, -1, "ucsi-source-psy-") != NULL) {
/* USB supplies should have a usb_type attribute which we would
* ideally decode further.
*
* For historic reasons, we have a heuristic for wacom tablets
* that can be dropped in the future.
* As of May 2022, it is expected to be fixed in kernel 5.19.
* https://patchwork.kernel.org/project/linux-input/patch/20220407115406.115112-1-hadess@hadess.net/
*/
if (g_udev_device_has_sysfs_attr (native, "usb_type") &&
g_udev_device_has_sysfs_attr (native, "online"))
type = UP_DEVICE_KIND_LINE_POWER;
} else {
g_warning ("did not recognise USB path %s, please report",
else if (g_strstr_len (native_path, -1, "wacom_") != NULL)
type = UP_DEVICE_KIND_TABLET;
else
g_warning ("USB power supply %s without usb_type property, please report",
native_path);
}
} else {
g_warning ("did not recognise type %s, please report", device_type);
}