Add Wireless PRO support, and wait for the erase to finish

README.md

@@ -1,6 +1,6 @@
 # krode
 
-Delete onboard recordings from the **Rode Interview PRO** wireless microphone transmitter on Linux.
+Delete onboard recordings from **Rode wireless microphone transmitters** on Linux — Interview PRO and Wireless PRO.
 
 Rode only officially supports this through their proprietary **Rode Central** software (Windows/macOS). This tool replicates the delete function via the device's USB HID control interface, which is accessible on Linux.
 
@@ -46,17 +46,40 @@ sudo usermod -aG plugdev $USER
 
 ## Usage
 
-Connect the Interview PRO TX unit via USB, then:
+Connect the transmitter via USB — a Wireless PRO also works while docked in its
+charging case — then:
 
 ```
-krode delete
+krode list
 ```
 
-This deletes all onboard recordings. The device confirms with a status code of 100 on success.
+```
+Wireless PRO TX             serial 800A92D6  /dev/hidraw12
+Wireless PRO TX             serial 800AF63E  /dev/hidraw10
+```
+
+```
+krode delete            # every connected transmitter
+krode delete 800AF63E   # just that one
+```
+
+The device reports progress as it erases, and `krode` waits for 100 %.
+
+**Two Wireless PRO transmitters share PID `0x0056`**, so a serial is the only
+way to tell them apart. Conveniently the HID serial is also the FAT volume UUID
+of that transmitter's storage: mount the volume, look at the filenames, and you
+know which microphone a serial belongs to.
+
+Afterwards the transmitter re-enumerates and its storage comes back **without a
+filesystem** until the device is unplugged and replugged. Waiting does not help.
+
+This is irreversible and there is no confirmation prompt. Copy your recordings
+off first — the storage is read-only at the device level, so this command is
+the only way to clear it.
 
 ## Protocol
 
-The Interview PRO presents as a composite USB device:
+These transmitters present as composite USB devices:
 
 - **Mass Storage (SCSI)** — read-only; used to copy WAV files to the host
 - **HID (vendor-specific)** — used for control commands
@@ -67,6 +90,11 @@ Device identifiers:
 |------|-----|-----|
 | Interview PRO TX (unit 1) | `0x19F7` | `0x0063` |
 | Interview PRO TX (unit 2) | `0x19F7` | `0x0068` |
+| Wireless PRO TX | `0x19F7` | `0x0056` |
+
+Note that the two Interview PRO units have distinct PIDs, while both Wireless
+PRO transmitters answer to `0x0056` — which is why devices are enumerated and
+opened by path, rather than with `hid_open(vid, pid, NULL)`.
 
 ### Delete command
 
@@ -87,19 +115,32 @@ HID Output Report, 17 bytes, sent via SET_REPORT:
 
 Response arrives on endpoint `0x81` (URB_INTERRUPT IN), 17 bytes:
 
+The device does not answer once — it streams progress reports on endpoint
+`0x81` (URB_INTERRUPT IN), 17 bytes each:
+
 ```
-02 4A 41 64 00 00 00 00 00 00 00 00 00 00 00 00 00
+02 4A 41 00     0 %
+02 4A 41 05     5 %
+02 4A 41 0A    10 %
+   ...
+02 4A 41 64   100 %
 ```
 
 | Byte | Value | Meaning |
 |------|-------|---------|
 | `[0]` | `0x02` | HID Report ID (input) |
 | `[1]` | `0x4A` | Echo of command byte |
 | `[2]` | `0x41` | ACK (`'A'`); NAK would be `0x4E` (`'N'`) |
-| `[3]` | `0x64` | Status: 100 = success |
+| `[3]` | `0x00`..`0x64` | Progress, 0 to 100 in steps of 5 |
+
+Byte `[3]` is a **percentage**, not a status constant: `100` means the erase
+finished. Stopping at the first reply reports success before the device is done.
+Erasing 6.1 GB took 1.8 s.
 
 Reverse-engineered from USB traffic captured with Wireshark + USBPcap on Windows.
-Confirmed working on TX unit 1 (PID `0x0063`). PID `0x0068` is untested for delete.
+Confirmed working on Interview PRO TX unit 1 (PID `0x0063`) and on both
+Wireless PRO transmitters (PID `0x0056`), the latter both connected directly and
+docked in the charging case. Interview PRO PID `0x0068` is untested for delete.
 
 ## Support