···152152 */
153153154154/*!
155155- * Helper function for `get_view_poses` in a HMD driver.
155155+ * Helper function to implement @ref xrt_device::get_view_poses in a HMD driver.
156156+ *
157157+ * The field @ref xrt_device::hmd needs to be set and valid.
156158 */
157159void
158160u_device_get_view_poses(struct xrt_device *xdev,