Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- hardware:hp2101nw_wlan_printserver [2011/12/14 00:08] – reinhold
+++ hardware:hp2101nw_wlan_printserver [2013/03/13 10:42] (aktuell) – Externe Bearbeitung 127.0.0.1
@@ Zeile 574: / Zeile 574: @@
 ===== Network communication protocol (USB port forwarding over WLAN) =====
+There are three different types of communications:
+  - Device information requests: UDP port 34444 (data format: "@\0[len][DEVNAME][OPTIONID]:[VALUE]\n")
+  - Detection, configuration and locking: TCP & UDP port 34447 (data format: "SBSU[Cmd][args]")
+  - USB over TCP: TCP port 34448 (data format: [type][18byte header], Response "RBRU[len]...")
   * TCP Ports 34447, 34448 and 34450 are open and used
   * UDP Ports 34444 and 34447 are used for discovery broadcast and other device communication
-There are three different types of communications:
-  - communication with the print server for configuration / printer detection and locking (UDP port 34444, "@\0[len][DEVNAME][OPTIONID]:\n")
-  - communication with the printer trough the print server (UDP port 34447, "SBSU[Cmd][args]")
-  - real USB over TCP communication with the printer (TCP port 34448, [type][18byte header], Response "RBRU[len]...")
 === General communication packet structure for print server communication ===
@@ Zeile 632: / Zeile 636: @@
 00 00 00 01 00 00 00                          ........
 42 52 55 12 00 00 00  02 00 00 00 00 00 00 00 RBRU.... ........
-00 00 00 12 01 00 02  00 00 00 40 2b 13 89 20 ........ ...@+..
+00 00 00 12 01 00 02  00 00 00 40 2b 13 89 20 ........ ...@ ..
 01 01 02 03 01                                ......
@@ Zeile 638: / Zeile 642: @@
 ^ bytes ^ description ^
-|  0  | command: 0x00=UNKNOWN (FIXME), 0x09=BULK FIXME, 0x0b=GET DESCRIPTOR, 0x1b=GET Device-specific DESCRIPTOR |
+|  0  | command: 0x00=GET interface information (FIXME), 0x09=BULK FIXME, 0x0b=GET DESCRIPTOR, 0x1b=URB_CONTROL In |
-|  1-18  | FIXME: UNKNOWN |
+|  1-5  | FIXME: UNKNOWN |
+|  3  | For GET interface information: Interface to request info for (0x00, 0x01, 0x02) |
+|  6  | For GET DESCRIPTOR: DESCRIPTOR index, Otherwise: FIXME UNKNOWN |
+|  7  | For GET DESCRIPTOR: DESCRIPTOR type (0x01=DEVICE, 0x02=CONFIGURATION, 0x03=STRING), Otherwise: FIXME UNKNOWN |
+|  8-9  | FIXME: UNKNOWN, for URB_CONTROL In: wValue, for STRING DESCRIPTOR: languageId |
+|  10-11  | FIXME: UNKNOWN, for URB_CONTROL In: wIndex |
+|  12-15  | For GET DESCRIPTOR: expected data length (excluding response header), URB_CONTROL In: URB length or wLength, little endian |
 |  16-19  | serial (little endian): sometimes 0x00000000, mostly equal to bytes 20-23 |
 |  20-23  | serial (little endian): Incremented with each USB command |
@@ Zeile 649: / Zeile 659: @@
 |  0-3  | ''RBRU'' magic ("URBR" in little endian) |
 |  4-7  | length of the packet data after the header (excluding this header) |
-|  8-10 | FIXME: UNKNOWN |
+|  8-10 | FIXME: UNKNOWN, mostly 0x02 0x00 0x00 |
 |  11   | FIXME: UNKNOWN (values 0x00, 0x32, 0x3a, 0x41) |
 |  12-19  | Bytes 16-23 of the request (serial) |
@@ Zeile 777: / Zeile 787: @@
 | 86-101  | ''10.0.0.4''  | IP-address (as string) of the locking PC, 0x00 if not connected |
 | 102-111 |               | Hostname of the locking PC, 0x00 if not connected |
-| 112-168 |               | FIXME: Unknown connection / locking data |
+| 112-168 |               | Locking data (as sent with the SBSU 0x07 locking command) |
 | 169-172 | serial  | 0x01; if printer is connected/locked, incremented with each status request (every 3 seconds) |
 | 173-174 |     | USB Vendor ID (little endian) |
 | 175-176 |     | USB Product ID (little endian) |
-| 177-192 |     | FIXME: Unknown (''00 01 02 03 00 ff ff ff  01 07 01 02 02 07 01 02'') |
+^ USB device interface information: ^^^
+| 177 | iConfiguration(?)    |  |
+| 178 | bConfigurationValue(?)    |  |
+| 179 | bDescriptorType(?)    |  |
+| 180 | bNumInterfaces  | Nr. of interfaces  |
+| 181-...   || interface info (4 bytes per interface) |
+|     | bInterfaceNumber   | Byte 0: ifNumber |
+|     | bInterfaceClass    | Byte 1: ifClass |
+|     | bInterfaceSubClass | Byte 2: ifSubclass |
+|     | bInterfaceProtocol | Byte 3: ifProto |
 All other bytes are 0x00. Their meaning is not yet known.
@@ Zeile 819: / Zeile 839: @@
 | 0-3  | ''SBSU'' | magic header indicating a USBS communication packet over UDP |
 | 4-5  | 0x0007 (little endian) | Response to 0x0007 request |
-| 38-42   |  ''13549''   | FIXME: Unknown, some USB descriptor (?) |
+| 6-37 | 16 bytes | USB device description |
-| 173-174 |  0x132b  | USB Vendor ID (little endian) |
+| 38-42  | 16 bytes   | USB device serial number (as string) |
-| 175-176 |  0x2089  | USB Product ID (little endian) |
-| 177-178 |  0x0100  | USB bcdDevice (little endian), TODO: Or iManufacturer or bNumConfigurations??? |
-| 177-192 |     | FIXME: Unknown (''02 03 00 ff ff ff  01 07 01 02 02 07 01 02'') |
-All other bytes are 0x00. Their meaning is not yet known.