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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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45
libfprint/fp-device.c
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@@ -50,6 +50,8 @@ enum {
PROP_FINGER_STATUS,
PROP_FPI_ENVIRON,
PROP_FPI_USB_DEVICE,
PROP_FPI_UDEV_DATA_SPIDEV,
PROP_FPI_UDEV_DATA_HIDRAW,
PROP_FPI_DRIVER_DATA,
N_PROPS
};
@@ -169,6 +171,8 @@ fp_device_finalize (GObject *object)
g_clear_object (&priv->usb_device);
g_clear_pointer (&priv->virtual_env, g_free);
g_clear_pointer (&priv->udev_data.spidev_path, g_free);
g_clear_pointer (&priv->udev_data.hidraw_path, g_free);
G_OBJECT_CLASS (fp_device_parent_class)->finalize (object);
}
@@ -248,6 +252,20 @@ fp_device_set_property (GObject *object,
g_assert (g_value_get_object (value) == NULL);
break;
case PROP_FPI_UDEV_DATA_SPIDEV:
if (cls->type == FP_DEVICE_TYPE_UDEV)
priv->udev_data.spidev_path = g_value_dup_string (value);
else
g_assert (g_value_get_string (value) == NULL);
break;
case PROP_FPI_UDEV_DATA_HIDRAW:
if (cls->type == FP_DEVICE_TYPE_UDEV)
priv->udev_data.hidraw_path = g_value_dup_string (value);
else
g_assert (g_value_get_string (value) == NULL);
break;
case PROP_FPI_DRIVER_DATA:
priv->driver_data = g_value_get_uint64 (value);
break;
@@ -425,6 +443,32 @@ fp_device_class_init (FpDeviceClass *klass)
"Private: The USB device for the device",
G_USB_TYPE_DEVICE,
G_PARAM_STATIC_STRINGS | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY);
/**
* FpDevice::fpi-udev-data-spidev: (skip)
*
* This property is only for internal purposes.
*
* Stability: private
*/
properties[PROP_FPI_UDEV_DATA_SPIDEV] =
g_param_spec_string ("fpi-udev-data-spidev",
"Udev data: spidev path",
"Private: The path to /dev/spidevN.M",
NULL,
G_PARAM_STATIC_STRINGS | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY);
/**
* FpDevice::fpi-udev-data-hidraw: (skip)
*
* This property is only for internal purposes.
*
* Stability: private
*/
properties[PROP_FPI_UDEV_DATA_HIDRAW] =
g_param_spec_string ("fpi-udev-data-hidraw",
"Udev data: hidraw path",
"Private: The path to /dev/hidrawN",
NULL,
G_PARAM_STATIC_STRINGS | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY);
/**
* FpDevice::fpi-driver-data: (skip)
@@ -673,6 +717,7 @@ fp_device_open (FpDevice *device,
break;
case FP_DEVICE_TYPE_VIRTUAL:
case FP_DEVICE_TYPE_UDEV:
break;
default: