Hi! Ich hätte da eine Frage^^ Also ich versuche einen PIC18F4550 als Audiodevice zu erkennen... Hab schon versucht im Interface Descriptor etc. 0x01 (für audio) einzutragen... PIC wird als erkannt, ich kann audiotreiber installieren aber im Gerätemanager kommt ein gelbes Rufzeichen (Fehlercode 10 [Gerät kann nicht gestartet werden]) Kann mir wer helfen? Einen schönen Nachmittag.. Max Berg Ps: Danke!
Oder kann ich vielleicht den Microchip custom Treiber so anpassen, dass mein Device als AudioDevice erkannt wird?
Du hast nur das eine Byte im Interface descriptor angepasst? Reicht vermutlich nicht, erstmal müssen wohl die richtigen Endpoints vorhanden sein, und dann muss der PIC natürlich korrekt auf die Requests antworten. Ich schau mal, ob ich ein USB-Audio Device hier finde, und dir den Descriptor dumpen kann, sollte schonmal ein Anfang sein.
So, gleich gefunden :) Vorsicht, ist recht Lang. Das Interface#2, HID, ist für die Lautstärke/Mute Tasten am Headset, brauchst du nur wenn du auch Tasten an deinen Pic bauen willst. Einfaches nachbauen des Deskriptors ist natürlich suboptimal, die Spec für USB-Audio sollte man nebenbei schon offen haben, um zu verstehen, was da alles angegeben wird.
1 | Bus 001 Device 013: ID 0d8c:000c C-Media Electronics, Inc. Audio Adapter |
2 | Device Descriptor: |
3 | bLength 18 |
4 | bDescriptorType 1 |
5 | bcdUSB 1.10 |
6 | bDeviceClass 0 (Defined at Interface level) |
7 | bDeviceSubClass 0 |
8 | bDeviceProtocol 0 |
9 | bMaxPacketSize0 64 |
10 | idVendor 0x0d8c C-Media Electronics, Inc. |
11 | idProduct 0x000c Audio Adapter |
12 | bcdDevice 1.00 |
13 | iManufacturer 0 |
14 | iProduct 1 C-Media USB Headphone Set |
15 | iSerial 0 |
16 | bNumConfigurations 1 |
17 | Configuration Descriptor: |
18 | bLength 9 |
19 | bDescriptorType 2 |
20 | wTotalLength 253 |
21 | bNumInterfaces 4 |
22 | bConfigurationValue 1 |
23 | iConfiguration 0 |
24 | bmAttributes 0xa0 |
25 | (Bus Powered) |
26 | Remote Wakeup |
27 | MaxPower 100mA |
28 | Interface Descriptor: |
29 | bLength 9 |
30 | bDescriptorType 4 |
31 | bInterfaceNumber 0 |
32 | bAlternateSetting 0 |
33 | bNumEndpoints 0 |
34 | bInterfaceClass 1 Audio |
35 | bInterfaceSubClass 1 Control Device |
36 | bInterfaceProtocol 0 |
37 | iInterface 0 |
38 | AudioControl Interface Descriptor: |
39 | bLength 10 |
40 | bDescriptorType 36 |
41 | bDescriptorSubtype 1 (HEADER) |
42 | bcdADC 1.00 |
43 | wTotalLength 100 |
44 | bInCollection 2 |
45 | baInterfaceNr( 0) 1 |
46 | baInterfaceNr( 1) 2 |
47 | AudioControl Interface Descriptor: |
48 | bLength 12 |
49 | bDescriptorType 36 |
50 | bDescriptorSubtype 2 (INPUT_TERMINAL) |
51 | bTerminalID 1 |
52 | wTerminalType 0x0101 USB Streaming |
53 | bAssocTerminal 0 |
54 | bNrChannels 2 |
55 | wChannelConfig 0x0003 |
56 | Left Front (L) |
57 | Right Front (R) |
58 | iChannelNames 0 |
59 | iTerminal 0 |
60 | AudioControl Interface Descriptor: |
61 | bLength 12 |
62 | bDescriptorType 36 |
63 | bDescriptorSubtype 2 (INPUT_TERMINAL) |
64 | bTerminalID 2 |
65 | wTerminalType 0x0201 Microphone |
66 | bAssocTerminal 0 |
67 | bNrChannels 1 |
68 | wChannelConfig 0x0001 |
69 | Left Front (L) |
70 | iChannelNames 0 |
71 | iTerminal 0 |
72 | AudioControl Interface Descriptor: |
73 | bLength 9 |
74 | bDescriptorType 36 |
75 | bDescriptorSubtype 3 (OUTPUT_TERMINAL) |
76 | bTerminalID 6 |
77 | wTerminalType 0x0301 Speaker |
78 | bAssocTerminal 0 |
79 | bSourceID 9 |
80 | iTerminal 0 |
81 | AudioControl Interface Descriptor: |
82 | bLength 9 |
83 | bDescriptorType 36 |
84 | bDescriptorSubtype 3 (OUTPUT_TERMINAL) |
85 | bTerminalID 7 |
86 | wTerminalType 0x0101 USB Streaming |
87 | bAssocTerminal 0 |
88 | bSourceID 8 |
89 | iTerminal 0 |
90 | AudioControl Interface Descriptor: |
91 | bLength 7 |
92 | bDescriptorType 36 |
93 | bDescriptorSubtype 5 (SELECTOR_UNIT) |
94 | bUnitID 8 |
95 | bNrInPins 1 |
96 | baSource( 0) 10 |
97 | iSelector 0 |
98 | AudioControl Interface Descriptor: |
99 | bLength 10 |
100 | bDescriptorType 36 |
101 | bDescriptorSubtype 6 (FEATURE_UNIT) |
102 | bUnitID 9 |
103 | bSourceID 15 |
104 | bControlSize 1 |
105 | bmaControls( 0) 0x01 |
106 | Mute |
107 | bmaControls( 1) 0x02 |
108 | Volume |
109 | bmaControls( 2) 0x02 |
110 | Volume |
111 | iFeature 0 |
112 | AudioControl Interface Descriptor: |
113 | bLength 9 |
114 | bDescriptorType 36 |
115 | bDescriptorSubtype 6 (FEATURE_UNIT) |
116 | bUnitID 10 |
117 | bSourceID 2 |
118 | bControlSize 1 |
119 | bmaControls( 0) 0x43 |
120 | Mute |
121 | Volume |
122 | Automatic Gain |
123 | bmaControls( 1) 0x00 |
124 | iFeature 0 |
125 | AudioControl Interface Descriptor: |
126 | bLength 9 |
127 | bDescriptorType 36 |
128 | bDescriptorSubtype 6 (FEATURE_UNIT) |
129 | bUnitID 13 |
130 | bSourceID 2 |
131 | bControlSize 1 |
132 | bmaControls( 0) 0x03 |
133 | Mute |
134 | Volume |
135 | bmaControls( 1) 0x00 |
136 | iFeature 0 |
137 | AudioControl Interface Descriptor: |
138 | bLength 13 |
139 | bDescriptorType 36 |
140 | bDescriptorSubtype 4 (MIXER_UNIT) |
141 | bUnitID 15 |
142 | bNrInPins 2 |
143 | baSourceID( 0) 1 |
144 | baSourceID( 1) 13 |
145 | bNrChannels 2 |
146 | wChannelConfig 0x0003 |
147 | Left Front (L) |
148 | Right Front (R) |
149 | iChannelNames 0 |
150 | bmControls 0x00 |
151 | iMixer 0 |
152 | Interface Descriptor: |
153 | bLength 9 |
154 | bDescriptorType 4 |
155 | bInterfaceNumber 1 |
156 | bAlternateSetting 0 |
157 | bNumEndpoints 0 |
158 | bInterfaceClass 1 Audio |
159 | bInterfaceSubClass 2 Streaming |
160 | bInterfaceProtocol 0 |
161 | iInterface 0 |
162 | Interface Descriptor: |
163 | bLength 9 |
164 | bDescriptorType 4 |
165 | bInterfaceNumber 1 |
166 | bAlternateSetting 1 |
167 | bNumEndpoints 1 |
168 | bInterfaceClass 1 Audio |
169 | bInterfaceSubClass 2 Streaming |
170 | bInterfaceProtocol 0 |
171 | iInterface 0 |
172 | AudioStreaming Interface Descriptor: |
173 | bLength 7 |
174 | bDescriptorType 36 |
175 | bDescriptorSubtype 1 (AS_GENERAL) |
176 | bTerminalLink 1 |
177 | bDelay 1 frames |
178 | wFormatTag 1 PCM |
179 | AudioStreaming Interface Descriptor: |
180 | bLength 14 |
181 | bDescriptorType 36 |
182 | bDescriptorSubtype 2 (FORMAT_TYPE) |
183 | bFormatType 1 (FORMAT_TYPE_I) |
184 | bNrChannels 2 |
185 | bSubframeSize 2 |
186 | bBitResolution 16 |
187 | bSamFreqType 2 Discrete |
188 | tSamFreq[ 0] 48000 |
189 | tSamFreq[ 1] 44100 |
190 | Endpoint Descriptor: |
191 | bLength 9 |
192 | bDescriptorType 5 |
193 | bEndpointAddress 0x01 EP 1 OUT |
194 | bmAttributes 9 |
195 | Transfer Type Isochronous |
196 | Synch Type Adaptive |
197 | Usage Type Data |
198 | wMaxPacketSize 0x00c8 1x 200 bytes |
199 | bInterval 1 |
200 | bRefresh 0 |
201 | bSynchAddress 0 |
202 | AudioControl Endpoint Descriptor: |
203 | bLength 7 |
204 | bDescriptorType 37 |
205 | bDescriptorSubtype 1 (EP_GENERAL) |
206 | bmAttributes 0x01 |
207 | Sampling Frequency |
208 | bLockDelayUnits 1 Milliseconds |
209 | wLockDelay 1 Milliseconds |
210 | Interface Descriptor: |
211 | bLength 9 |
212 | bDescriptorType 4 |
213 | bInterfaceNumber 2 |
214 | bAlternateSetting 0 |
215 | bNumEndpoints 0 |
216 | bInterfaceClass 1 Audio |
217 | bInterfaceSubClass 2 Streaming |
218 | bInterfaceProtocol 0 |
219 | iInterface 0 |
220 | Interface Descriptor: |
221 | bLength 9 |
222 | bDescriptorType 4 |
223 | bInterfaceNumber 2 |
224 | bAlternateSetting 1 |
225 | bNumEndpoints 1 |
226 | bInterfaceClass 1 Audio |
227 | bInterfaceSubClass 2 Streaming |
228 | bInterfaceProtocol 0 |
229 | iInterface 0 |
230 | AudioStreaming Interface Descriptor: |
231 | bLength 7 |
232 | bDescriptorType 36 |
233 | bDescriptorSubtype 1 (AS_GENERAL) |
234 | bTerminalLink 7 |
235 | bDelay 1 frames |
236 | wFormatTag 1 PCM |
237 | AudioStreaming Interface Descriptor: |
238 | bLength 14 |
239 | bDescriptorType 36 |
240 | bDescriptorSubtype 2 (FORMAT_TYPE) |
241 | bFormatType 1 (FORMAT_TYPE_I) |
242 | bNrChannels 1 |
243 | bSubframeSize 2 |
244 | bBitResolution 16 |
245 | bSamFreqType 2 Discrete |
246 | tSamFreq[ 0] 48000 |
247 | tSamFreq[ 1] 44100 |
248 | Endpoint Descriptor: |
249 | bLength 9 |
250 | bDescriptorType 5 |
251 | bEndpointAddress 0x82 EP 2 IN |
252 | bmAttributes 5 |
253 | Transfer Type Isochronous |
254 | Synch Type Asynchronous |
255 | Usage Type Data |
256 | wMaxPacketSize 0x0064 1x 100 bytes |
257 | bInterval 1 |
258 | bRefresh 0 |
259 | bSynchAddress 0 |
260 | AudioControl Endpoint Descriptor: |
261 | bLength 7 |
262 | bDescriptorType 37 |
263 | bDescriptorSubtype 1 (EP_GENERAL) |
264 | bmAttributes 0x01 |
265 | Sampling Frequency |
266 | bLockDelayUnits 0 Undefined |
267 | wLockDelay 0 Undefined |
268 | Interface Descriptor: |
269 | bLength 9 |
270 | bDescriptorType 4 |
271 | bInterfaceNumber 3 |
272 | bAlternateSetting 0 |
273 | bNumEndpoints 1 |
274 | bInterfaceClass 3 Human Interface Device |
275 | bInterfaceSubClass 0 No Subclass |
276 | bInterfaceProtocol 0 None |
277 | iInterface 0 |
278 | HID Device Descriptor: |
279 | bLength 9 |
280 | bDescriptorType 33 |
281 | bcdHID 1.00 |
282 | bCountryCode 0 Not supported |
283 | bNumDescriptors 1 |
284 | bDescriptorType 34 Report |
285 | wDescriptorLength 50 |
286 | Report Descriptors: |
287 | ** UNAVAILABLE ** |
288 | Endpoint Descriptor: |
289 | bLength 7 |
290 | bDescriptorType 5 |
291 | bEndpointAddress 0x83 EP 3 IN |
292 | bmAttributes 3 |
293 | Transfer Type Interrupt |
294 | Synch Type None |
295 | Usage Type Data |
296 | wMaxPacketSize 0x0004 1x 4 bytes |
297 | bInterval 32 |
298 | Device Status: 0x0000 |
299 | (Bus Powered) |
Und, der Vollständigkeit halber, nochmal den gesammten Deskriptor-Block als Hexdump:
1 | 00000000 12 01 10 01 00 00 00 40 8c 0d 0c 00 00 01 00 01 |.......@........| |
2 | 00000010 00 01 09 02 fd 00 04 01 00 a0 32 09 04 00 00 00 |..........2.....| |
3 | 00000020 01 01 00 00 0a 24 01 00 01 64 00 02 01 02 0c 24 |.....$...d.....$| |
4 | 00000030 02 01 01 01 00 02 03 00 00 00 0c 24 02 02 01 02 |...........$....| |
5 | 00000040 00 01 01 00 00 00 09 24 03 06 01 03 00 09 00 09 |.......$........| |
6 | 00000050 24 03 07 01 01 00 08 00 07 24 05 08 01 0a 00 0a |$........$......| |
7 | 00000060 24 06 09 0f 01 01 02 02 00 09 24 06 0a 02 01 43 |$.........$....C| |
8 | 00000070 00 00 09 24 06 0d 02 01 03 00 00 0d 24 04 0f 02 |...$........$...| |
9 | 00000080 01 0d 02 03 00 00 00 00 09 04 01 00 00 01 02 00 |................| |
10 | 00000090 00 09 04 01 01 01 01 02 00 00 07 24 01 01 01 01 |...........$....| |
11 | 000000a0 00 0e 24 02 01 02 02 10 02 80 bb 00 44 ac 00 09 |..$.........D...| |
12 | 000000b0 05 01 09 c8 00 01 00 00 07 25 01 01 01 01 00 09 |.........%......| |
13 | 000000c0 04 02 00 00 01 02 00 00 09 04 02 01 01 01 02 00 |................| |
14 | 000000d0 00 07 24 01 07 01 01 00 0e 24 02 01 01 02 10 02 |..$......$......| |
15 | 000000e0 80 bb 00 44 ac 00 09 05 82 05 64 00 01 00 00 07 |...D......d.....| |
16 | 000000f0 25 01 01 00 00 00 09 04 03 00 01 03 00 00 00 09 |%...............| |
17 | 00000100 21 00 01 00 01 22 32 00 07 05 83 03 04 00 20 |!...."2....... | |
Hoffe das hilft dir irgendwie weiter.
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