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7cb0592f72
Just move the G_DEFINE_AUTOPTR_CLEANUP_FUNC to the internal header to avoid forgetting to define this in each plugin.
85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/*
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* Copyright (C) 2019 Aleksander Morgado <aleksander@aleksander.es>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#include "config.h"
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#include <gio/gio.h>
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#include "fu-udev-device.h"
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#include "fu-mm-utils.h"
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gboolean
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fu_mm_utils_get_udev_port_info (GUdevDevice *device,
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gchar **out_device_sysfs_path,
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gint *out_port_ifnum,
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GError **error)
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{
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gint port_ifnum = -1;
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const gchar *aux;
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g_autoptr(GUdevDevice) parent = NULL;
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g_autofree gchar *device_sysfs_path = NULL;
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/* ID_USB_INTERFACE_NUM is set on the port device itself */
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aux = g_udev_device_get_property (device, "ID_USB_INTERFACE_NUM");
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if (aux != NULL)
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port_ifnum = (guint16) g_ascii_strtoull (aux, NULL, 16);
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/* we need to traverse all parents of the give udev device until we find
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* the first 'usb_device' reported, which is the GUdevDevice associated with
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* the full USB device (i.e. all ports of the same device).
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*/
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parent = g_udev_device_get_parent (device);
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while (parent != NULL) {
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g_autoptr(GUdevDevice) next = NULL;
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if (g_strcmp0 (g_udev_device_get_devtype (parent), "usb_device") == 0) {
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device_sysfs_path = g_strdup (g_udev_device_get_sysfs_path (parent));
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break;
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}
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/* check next parent */
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next = g_udev_device_get_parent (parent);
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g_set_object (&parent, next);
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}
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if (parent == NULL) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_NOT_FOUND,
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"failed to lookup device info: parent usb_device not found");
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return FALSE;
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}
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if (out_port_ifnum != NULL)
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*out_port_ifnum = port_ifnum;
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if (out_device_sysfs_path != NULL)
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*out_device_sysfs_path = g_steal_pointer (&device_sysfs_path);
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return TRUE;
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}
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gboolean
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fu_mm_utils_get_port_info (const gchar *path,
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gchar **out_device_sysfs_path,
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gint *out_port_ifnum,
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GError **error)
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{
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g_autoptr(GUdevClient) client = NULL;
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g_autoptr(GUdevDevice) dev = NULL;
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client = g_udev_client_new (NULL);
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dev = g_udev_client_query_by_device_file (client, path);
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if (dev == NULL) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_NOT_FOUND,
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"failed to lookup device by path");
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return FALSE;
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}
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return fu_mm_utils_get_udev_port_info (dev, out_device_sysfs_path, out_port_ifnum, error);
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}
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