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Add support for udev based device discovery

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This is primarily useful for SPI devices. These devices sometimes needs
a combination of an SPI and HID device, so discovery is a bit more
complicated.
This commit is contained in:
Matthew Mirvish
2021-04-08 16:46:01 +02:00
committed by Benjamin Berg
parent e95056aa86
commit b0d9d00762
9 changed files with 242 additions and 9 deletions
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33
libfprint/fpi-device.c
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@@ -335,6 +335,38 @@ fpi_device_get_usb_device (FpDevice *device)
return priv->usb_device;
}
/**
* fpi_device_get_udev_data:
* @device: The #FpDevice
* @subtype: Which subtype to get information about
*
* Get a subtype-specific hardware resource for this #FpDevice. Only permissible to call if the
* #FpDevice is of type %FP_DEVICE_TYPE_UDEV.
*
* Returns: Depends on @subtype; for SPIDEV/HIDRAW returns a path to the relevant device.
*/
gpointer
fpi_device_get_udev_data (FpDevice *device, FpiDeviceUdevSubtypeFlags subtype)
{
FpDevicePrivate *priv = fp_device_get_instance_private (device);
g_return_val_if_fail (FP_IS_DEVICE (device), NULL);
g_return_val_if_fail (priv->type == FP_DEVICE_TYPE_UDEV, NULL);
switch (subtype)
{
case FPI_DEVICE_UDEV_SUBTYPE_HIDRAW:
return priv->udev_data.hidraw_path;
case FPI_DEVICE_UDEV_SUBTYPE_SPIDEV:
return priv->udev_data.spidev_path;
default:
g_return_val_if_reached (NULL);
return NULL;
}
}
/**
* fpi_device_get_virtual_env:
* @device: The #FpDevice
@@ -977,6 +1009,7 @@ fpi_device_close_complete (FpDevice *device, GError *error)
break;
case FP_DEVICE_TYPE_VIRTUAL:
case FP_DEVICE_TYPE_UDEV:
break;
default: