System76PayloadPkg: Stall before connecting devices

crawfxrd · crawfxrd · commit f12cb6d6ae28 · 2025-07-07T17:15:59.000-06:00
USB devices are not being detected when booting. Pause a bit for them to
be initialized and detected by EfiBootManagerConnectAll().

Signed-off-by: Tim Crawford &lt;tcrawford@system76.com&gt;
diff --git a/System76PayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c b/System76PayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c
@@ -139,6 +139,9 @@ PlatformBootManagerAfterConsole (
         );
   }
 
+  // FIXME: USB devices are not being detected unless we wait a bit.
+  gBS->Stall (100 * 1000);
+
   EfiBootManagerConnectAll ();
   EfiBootManagerRefreshAllBootOption ();
 

Original file line number	Diff line number	Diff line change
`@@ -139,6 +139,9 @@ PlatformBootManagerAfterConsole (`
`139`	`139`	`);`
`140`	`140`	`}`
`141`	`141`
	`142`	`+ // FIXME: USB devices are not being detected unless we wait a bit.`
	`143`	`+ gBS->Stall (100 * 1000);`
	`144`	`+`
`142`	`145`	`EfiBootManagerConnectAll ();`
`143`	`146`	`EfiBootManagerRefreshAllBootOption ();`
`144`	`147`