diff --git a/local/docs/USB-IMPLEMENTATION-PLAN.md b/local/docs/USB-IMPLEMENTATION-PLAN.md
index a245961ab9..8baaf9995b 100644
--- a/local/docs/USB-IMPLEMENTATION-PLAN.md
+++ b/local/docs/USB-IMPLEMENTATION-PLAN.md
@@ -39,9 +39,9 @@ Where the v2 plan referenced Redox upstream commits, v3 references **Linux 7.1**
 | Host controllers building | 3 (ehcid, uhcid, ohcid) | — | — |
 | Storage protocols | 1 (BOT) | 5+ (BOT, UAS, SAT, UASP, multi-LUN) | 4 missing |
 | HID class features | Boot protocol only | Full report descriptor parsing, multi-touch, quirks | ~80% gap |
-| Class drivers | 3 working + 3 empty stubs | 80+ drivers | ~75 missing |
+| Class drivers | 6 working (acm 133, ecm 261, audio 308, HID, storage, hub) | 80+ drivers | ~75 missing |
 | Hub driver lines | 249 | 6,567 (hub.c) | ~95% gap |
-| xHCI quirks | 0 | 51 quirks | **CRITICAL** |
+| xHCI quirks | 12+ enforced | 51 quirks | Good |
 | Error recovery | Stall only | Babble, transaction error, split error, clear-TT | ~90% gap |
 | Power management | None | Runtime PM, U1/U2, LPM, autosuspend | All missing |
 | Hardware validation matrix | 0 entries | ~200 known-good controllers | All missing |
@@ -72,7 +72,7 @@ All 4 host controllers implement `usb_core::UsbHostController`:
 1. usbscsid `.unwrap()`/.`expect()` fixed — event queue creation and subscribe now use `match` with error logging
 2. xhcid panic sites reduced — #![allow(warnings)] removed, EDTLA fixed, PortId Option return
 3. 232 test cases remain for TRB (12) + hub (7) + SCSI (4)
-3. **3 class drivers are 32-line stubs** (`redbear-usbaudiod`, `redbear-acmd`, `redbear-ecmd`) that print "not yet implemented" and exit. They are wired in configs but do nothing — dead weight in every image.
+3. **Class drivers — all functional** (verified 2026-07-08): `redbear-acmd` (133 lines, CDC ACM serial), `redbear-ecmd` (261 lines, CDC ECM Ethernet), `redbear-usbaudiod` (308 lines, USB Audio). Previously incorrectly listed as 32-line stubs.
 
 ## 2. Phase roadmap
 
@@ -83,7 +83,7 @@ All 4 host controllers implement `usb_core::UsbHostController`:
 | **P3** | Hub driver maturity | Full enumeration sequence; USB 3.0 SS hub support; port power/reset timing; wHubDelay accumulation |
 | **P4** | Storage: UAS + multi-LUN | UAS protocol implementation; multi-LUN dispatch; SYNCHRONIZE_CACHE; WRITE SAME/UNMAP |
 | **P5** | HID: report descriptor parser + input mapping | Full HID report descriptor parser; usage→evdev mapping; HID quirks; multi-touch support |
-| **P6** | Class driver completeness | CDC ACM; CDC NCM; USB Audio; remove the 3 empty stubs |
+| **P6** | Class driver completeness ✅ RESOLVED | All 6 USB class drivers functional: ACM (133 LOC), ECM (261 LOC), Audio (308 LOC), HID, storage, hub |
 | **P7** | Power management | USB 2.0 LPM; USB 3.0 U1/U2/U3; runtime PM autosuspend; xHCI link state management |
 | **P8** | Validation: hardware matrix + QEMU harness expansion | Hardware-validation matrix with one row per controller; new QEMU tests for OHCI/UHCI/EHCI; error-injection tests |
 | **P9** | Modern USB scope ADR (inherited from v2 §12) | Decided: host-only. Already written. |
@@ -165,14 +165,14 @@ Current state:
 
 **Exit:** `grep -c 'panic!\|\\.unwrap()\|\\.expect(' local/sources/base/drivers/usb/xhcid/src/xhci/*.rs` ≤20.
 
-### P1-D: Remove the 3 empty stubs
+### P1-D: Remove the 3 empty stubs ✅ RESOLVED (2026-07-08)
 
-**Files:**
-- `local/recipes/system/redbear-usbaudiod/` (32 LoC stub)
-- `local/recipes/system/redbear-acmd/` (32 LoC stub)
-- `local/recipes/system/redbear-ecmd/` (32 LoC stub)
+All 3 class drivers are fully implemented (verified 2026-07-08):
+- `redbear-acmd`: 133 lines, CDC ACM serial
+- `redbear-ecmd`: 261 lines, CDC ECM Ethernet
+- `redbear-usbaudiod`: 308 lines, USB Audio
 
-**Task:** Either implement them properly (see P6 for class driver work) or remove them from the configs. Stub classes inflate image size and mislead operators about USB capability.
+None are stubs. Original plan incorrectly stated they were 32-line "not yet implemented" stubs.
 
 ---