diff -r 78891f472fbf sys/src/9/pc/sdiahci.c
--- a/sys/src/9/pc/sdiahci.c	Sun Oct 18 23:39:07 2020 +0200
+++ b/sys/src/9/pc/sdiahci.c	Sun Oct 18 23:09:18 2020 +0200
@@ -2125,6 +2125,8 @@
 		break;
 	case 0x10de:
 	case 0x1039:
+	case 0x1b21:
+		/* ASMedia */
 	case 0x1b4b:
 	case 0x11ab:
 		break;