--- a/drivers/pcid-spawner/src/main.rs
+++ b/drivers/pcid-spawner/src/main.rs
@@ -54,11 +54,12 @@ fn main() -> Result<()> {
             }
         };
 
-        let full_device_id = handle.config().func.full_device_id;
+        let func = handle.config().func;
+        let full_device_id = func.full_device_id;
 
         log::debug!(
             "pcid-spawner enumerated: PCI {} {}",
-            handle.config().func.addr,
+            func.addr,
             full_device_id.display()
         );
 
@@ -67,7 +68,7 @@ fn main() -> Result<()> {
             .iter()
             .find(|driver| driver.match_function(&full_device_id))
         else {
-            log::debug!("no driver for {}, continuing", handle.config().func.addr);
+            log::debug!("no driver for {}, continuing", func.addr);
             continue;
         };
 
@@ -91,6 +92,10 @@ fn main() -> Result<()> {
 
         let channel_fd = handle.into_inner_fd();
         command.env("PCID_CLIENT_CHANNEL", channel_fd.to_string());
+        command.env("PCID_SEGMENT", format!("{:04x}", func.addr.segment()));
+        command.env("PCID_BUS", format!("{:02x}", func.addr.bus()));
+        command.env("PCID_DEVICE", format!("{:02x}", func.addr.device()));
+        command.env("PCID_FUNCTION", format!("{}", func.addr.function()));
 
         #[allow(deprecated, reason = "we can't yet move this to init")]
         daemon::Daemon::spawn(command);