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composite device: enum failed
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NicolasC

Joined: 14 Sep 2006
Posts: 27

composite device: enum failed

Posted: Sat Aug 11, 2007 2:15 pm

Hil all

I'm trying to make a CDC+HID+KBD device but enumeration fails:
After the configuration descriptor is sent, the comm stops :

Code:

1 in down n/a 0.001 GET_DESCRIPTOR_FROM_DEVICE
1 in up    n/a 0.003 CONTROL_TRANSFER 12 01 00 02 00 00 00 40 0x00000000
2 in down n/a 0.003 GET_DESCRIPTOR_FROM_DEVICE
2 in up    n/a 0.005 CONTROL_TRANSFER 09 02 7c 00 04 01 00 c0 0x00000000
3 in down n/a 0.005 GET_DESCRIPTOR_FROM_DEVICE
3 in up    n/a 0.008 CONTROL_TRANSFER 09 02 7c 00 04 01 00 c0 0x00000000

The content of the last packet displayed by snoopy is exactly was is define in the USB_CONFIG_DESC structure.

Code:

//////////////////////////////////////////////////////////////////
///
/// HID Report. Tells HID driver how to handle and deal with
/// received data. HID Reports can be extremely complex,
/// see HID specifcation for help on writing your own.
///
/// First it defines a block for the first interface for a mouse
/// protocol. Second it defines a block for the second interface
/// for a keyboard protocol.
///
//////////////////////////////////////////////////////////////////

const char USB_CLASS_SPECIFIC_DESC[] = {
//hid report descriptor for interface 0 (joystick)
0x05, 0x01, // Usage Page = Generic Desktop ==0,1
0x09, 0x04, // Usage = Joystick ==2,3
0xA1, 0x01, // Collection = Application ==4,5
0x09, 0x33, // Usage (Rx) ==6,7
0x09, 0x34, // Usage (Ry) ==8,9
0x09, 0x35, // Usage (Ry) ==10,11
0x09, 0x36, // Usage (Slider) ==12,13
0x15, 0x00, // Logical Minimum (0) ==14,15
0x26, 0xFF,0x03, // Logical Maximum (1023) ==16,17,18
0x35, 0x00, // Physical Minimum (0) ==19,20
0x46, 0xFF,0x03, // Physical Maximum (1023) ==21,22,23
0x75, 0x0A, // Report Size (10) 10 bits ==24,25
0x95, 0x04, // Report Count (4) ==26,27
0x81, 0x02, // Input (Data,Var,Abs) ==28,29
0xC0, // End Collection ==30

//hid report descriptor for interface 1 (keyboard)
0x05, 0x01, //usage page (generic desktop) ==31, 32
0x09, 0x06, //usage (keyboard) ==33, 34
0xA1, 0x01, //collection (application) ==35, 36
0x05, 0x07, //usage page (key codes) ==37, 38
0x19, 0xE0, //usage min (224) ==39, 40
0x29, 0xE7, //usage max (231) ==41, 42
0x15, 0x00, //logical min (0) ==43, 44
0x25, 0x01, //logical max (1) ==45, 46
0x75, 0x01, //report size (1) ==47, 48
0x95, 0x08, //report count (8) ==49, 50
0x81, 0x02, //input (data, variable, absolute) [modifier byte] ==51, 52
0x95, 0x01, //report count (1) ==53, 54
0x75, 0x08, //report size (8) ==55, 56
0x81, 0x01, //input (constant) [reserved byte] ==57, 58
0x95, 0x05, //report count (5) ==59, 60
0x75, 0x01, //report size (1) ==61, 62
0x05, 0x08, //usage page (page# for leds) ==63, 64
0x19, 0x01, //usage min (1) ==65, 66
0x29, 0x05, //usage max (5) ==67, 68
0x91, 0x02, //output (data, var, abs) [led report] ==69, 70
0x95, 0x01, //report count (1) ==71, 72
0x75, 0x03, //report size (3) ==73, 74
0x91, 0x01, //output (constant) [led report padding] ==75, 76
0x95, 0x05, //report count (5) ==77, 78
0x75, 0x08, //report size (8) ==79, 80
0x15, 0x00, //logical min (0) ==81, 82
0x25, 0x65, //logical max (101) ==83, 84
0x05, 0x07, //usage page (key codes) ==85, 86
0x19, 0x00, //usage min (0) ==87, 88
0x29, 0x65, //usage max (101) ==89, 90
0x81, 0x00, //input (data, array) ==91, 92
0xC0 //end collection ==93
};

//if a class has an extra descriptor not part of the config descriptor,
// this lookup table defines where to look for it in the const
// USB_CLASS_SPECIFIC_DESC[] array.
//first element is the config number (if your device has more than one config)
//second element is which interface number
//set element to 0xFFFF if this config/interface combo doesn't exist
//Idx in USB_CLASS_SPECIFIC_DESC
const int16 USB_CLASS_SPECIFIC_DESC_LOOKUP[USB_NUM_CONFIGURATIONS][2] =
{
//config 1
//interface 0
0,
//interface 1
31
};

//if a class has an extra descriptor not part of the config descriptor,
// this lookup table defines the size of that descriptor.
//first element is the config number (if your device has more than one config)
//second element is which interface number
//set element to 0xFFFF if this config/interface combo doesn't exist
const int16 USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[USB_NUM_CONFIGURATIONS][2] =
{
//config 1
//interface 0
31,
//interface 1
63
};

//////////////////////////////////////////////////////////////////
///
/// start config descriptor
/// right now we only support one configuration descriptor.
/// the config, interface, class, and endpoint goes into this array.
///
//////////////////////////////////////////////////////////////////

#DEFINE USB_TOTAL_CONFIG_LEN 124//67 //config+interface+class+endpoint+endpoint (2 endpoints)

const char USB_CONFIG_DESC[] = {
//IN ORDER TO COMPLY WITH WINDOWS HOSTS, THE ORDER OF THIS ARRAY MUST BE:
// config(s)
// interface(s)
// class(es)
// endpoint(s)

//config_descriptor for config index 1
USB_DESC_CONFIG_LEN, //length of descriptor size ==0
USB_DESC_CONFIG_TYPE, //constant CONFIGURATION (CONFIGURATION 0x02) ==1
USB_TOTAL_CONFIG_LEN,0, //size of all data returned for this config ==2,3
4, //number of interfaces this device supports ==4
0x01, //identifier for this configuration. (IF we had more than one configurations) ==5
0x00, //index of string descriptor for this configuration ==6
0xC0, //bit 6=1 if self powered, bit 5=1 if supports remote wakeup (we don't), bits 0-4 unused and bit7=1 ==7
0x32, //maximum bus power required (maximum milliamperes/2) (0x32 = 100mA) == 8

//interface descriptor 0 (comm class interface)
USB_DESC_INTERFACE_LEN, //length of descriptor ==9
USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04) ==10
0x00, //number defining this interface (IF we had more than one interface) ==11
0x00, //alternate setting ==12
1, //number of endpoints ==13
0x02, //class code, 02 = Comm Interface Class ==14
0x02, //subclass code, 2 = Abstract ==15
0x01, //protocol code, 1 = v.25ter ==16
0x00, //index of string descriptor for interface ==17

//class descriptor [functional header]
5, //length of descriptor ==18
0x24, //dscriptor type (0x24 == ) ==19
0, //sub type (0=functional header) ==20
0x10,0x01, // ==21,22 //cdc version

//class descriptor [acm header]
4, //length of descriptor ==23
0x24, //dscriptor type (0x24 == ) ==24
2, //sub type (2=ACM) ==25
2, //capabilities ==26 //we support Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State.

//class descriptor [union header]
5, //length of descriptor ==27
0x24, //dscriptor type (0x24 == ) ==28
6, //sub type (6=union) ==29
0, //master intf ==30 //The interface number of the Communication or Dat a Cl [spam] interface, designated as the masteror controlling interface for the union.
1, //save intf0 ==31 //Interface number of first slave or associated interface in the union. *

//class descriptor [call mgmt header]
5, //length of descriptor ==32
0x24, //dscriptor type (0x24 == ) ==33
1, //sub type (1=call mgmt) ==34
0, //capabilities ==35 //device does not handle call management itself
1, //data interface ==36 //interface number of data class interface

//endpoint descriptor
USB_DESC_ENDPOINT_LEN, //length of descriptor ==37
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==38
USB_CDC_COMM_IN_ENDPOINT | 0x80, //endpoint number and direction ==39
0x03, //transfer type supported (0x03 is interrupt) ==40
USB_CDC_COMM_IN_SIZE,0x00, //maximum packet size supported ==41,42
250, //polling interval, in ms. (cant be smaller than 10) ==43

//interface descriptor 1 (data class interface)
USB_DESC_INTERFACE_LEN, //length of descriptor ==44
USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04) ==45
0x01, //number defining this interface (IF we had more than one interface) ==46
0x00, //alternate setting ==47
2, //number of endpoints ==48
0x0A, //class code, 0A = Data Interface Class ==49
0x00, //subclass code ==50
0x00, //protocol code ==51
0x00, //index of string descriptor for interface ==52

//endpoint descriptor
USB_DESC_ENDPOINT_LEN, //length of descriptor ==53
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==54
USB_CDC_DATA_OUT_ENDPOINT, //endpoint number and direction (0x02 = EP2 OUT) ==55
0x02, //transfer type supported (0x02 is bulk) ==56
USB_CDC_DATA_OUT_SIZE & 0xFF, (USB_CDC_DATA_OUT_SIZE >> 8) & 0xFF, //maximum packet size supported ==57, 58
250, //polling interval, in ms. (cant be smaller than 10) ==59

//endpoint descriptor
USB_DESC_ENDPOINT_LEN, //length of descriptor ==60
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==61
USB_CDC_DATA_IN_ENDPOINT | 0x80, //endpoint number and direction (0x82 = EP2 IN) ==62
0x02, //transfer type supported (0x02 is bulk) ==63
USB_CDC_DATA_IN_SIZE & 0xFF, (USB_CDC_DATA_IN_SIZE >> 8) & 0xFF, //maximum packet size supported ==64, 65
250, //polling interval, in ms. (cant be smaller than 10) ==66

//interface descriptor 2 (HID)
USB_DESC_INTERFACE_LEN, //length of descriptor ==67
USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04) ==68
0x00, //number defining this interface (IF we had more than one interface) ==69
0x00, //alternate setting ==70
1, //number of endpoints for this interface ==71
0x03, //class code, 03 = HID ==72
0x00, //subclass code //boot ==73
0x00, //protocol code ==74
0x00, //index of string descriptor for interface ==75

//class descriptor 2 (HID)
USB_DESC_CLASS_LEN, //length of descriptor ==76
USB_DESC_CLASS_TYPE, //dscriptor type (0x21 == HID) ==77
0x00,0x01, //hid class release number (1.0) (try 1.10) ==78,79
0x00, //localized country code (0 = none) ==80
0x01, //number of hid class descrptors that follow (1) ==81
USB_DESC_HIDREPORT_TYPE, //report descriptor type (0x22 == HID) ==82
USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[0][0], 0x00, //length of report descriptor ==83,84

//endpoint descriptor 2
USB_DESC_ENDPOINT_LEN, //length of descriptor ==85
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==86
USB_HID_JOY_IN_ENDPOINT | 0x80, //endpoint number and direction (0x81 = EP1 IN) ==87
USB_ENDPOINT_TYPE_INTERRUPT, //transfer type supported (0x03 is interrupt) ==88
USB_EP3_TX_SIZE,0x00, //maximum packet size supported ==89,90
2, //polling interval, in ms. (cant be smaller than 10 for slow speed devices) ==91

//interface descriptor 3 (KEYBOARD)
USB_DESC_INTERFACE_LEN, //length of descriptor ==92
USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04) ==93
0x01, //number defining this interface (IF we had more than one interface) ==94
0x00, //alternate setting ==95
2, //number of endpoints for this interface ==96
0x03, //class code, 03 = HID ==97
0x01, //subclass code //boot ==98
0x01, //protocol code (keyboard) ==99
0x00, //index of string descriptor for interface ==100

//class descriptor 3 (KEYBOARD)
USB_DESC_CLASS_LEN, //length of descriptor ==101
USB_DESC_CLASS_TYPE, //dscriptor type (0x21 == HID) ==102
0x00,0x01, //hid class release number (1.0) (try 1.10) ==103,104
0x00, //localized country code (0 = none) ==105
0x01, //number of hid class descriptors that follow (1) ==106
USB_DESC_HIDREPORT_TYPE, //report descriptor type (0x22 == HID) ==107
USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[0][1], 0x00, //length of report descriptor ==108,109

//endpoint descriptor 3 IN
USB_DESC_ENDPOINT_LEN, //length of descriptor ==110
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==111
USB_HID_KBD_IN_ENDPOINT | 0x80, //endpoint number and direction (0x81 = EP1 IN) ==112
USB_ENDPOINT_TYPE_INTERRUPT, //transfer type supported (0x03 is interrupt) ==113
USB_EP4_TX_SIZE,0x00, //maximum packet size supported ==114,115
10, //polling interval, in ms. (cant be smaller than 10 for slow speed devices)==116

//endpoint descriptor 3 OUT
USB_DESC_ENDPOINT_LEN, //length of descriptor ==117
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==118
USB_HID_KBD_OUT_ENDPOINT, //endpoint number and direction (0x81 = EP1 IN) ==119
USB_ENDPOINT_TYPE_INTERRUPT, //transfer type supported (0x03 is interrupt) ==120
USB_EP4_RX_SIZE,0x00, //maximum packet size supported ==121,122
10 //polling interval, in ms. (cant be smaller than 10 for slow speed devices) ==123

};

//****** BEGIN CONFIG DESCRIPTOR LOOKUP TABLES ********
//since we can't make pointers to constants in certain pic16s, this is an offset table to find
// a specific descriptor in the above table.

//NOTE: DO TO A LIMITATION OF THE CCS CODE, ALL HID INTERFACES MUST START AT 0 AND BE SEQUENTIAL
// FOR EXAMPLE, IF YOU HAVE 2 HID INTERFACES THEY MUST BE INTERFACE 0 AND INTERFACE 1
#define USB_NUM_HID_INTERFACES 2

//the maximum number of interfaces seen on any config
//for example, if config 1 has 1 interface and config 2 has 2 interfaces you must define this as 2
#define USB_MAX_NUM_INTERFACES 4

//define how many interfaces there are per config. [0] is the first config, etc.
const char USB_NUM_INTERFACES[USB_NUM_CONFIGURATIONS]={4};

//define where to find class descriptors
//first dimension is the config number
//second dimension specifies which interface
//last dimension specifies which class in this interface to get, but most will only have 1 class per interface
//if a class descriptor is not valid, set the value to 0xFFFF
//Idx class in USB_CONFIG_DESC
const int16 USB_CLASS_DESCRIPTORS[USB_NUM_CONFIGURATIONS][USB_MAX_NUM_INTERFACES][4]=
{
//config 1
//interface 0
//class 1-4
18,23,27,32,
//interface 1
//no classes for this interface
0xFFFF,0xFFFF,0xFFFF,0xFFFF
//interface 3
76,0xFFFF,0xFFFF,0xFFFF
//interface 4
101,0xFFFF,0xFFFF,0xFFFF
};

//****** END CONFIG DESCRIPTOR LOOKUP TABLES ********

#if (sizeof(USB_CONFIG_DESC) != USB_TOTAL_CONFIG_LEN)
#error USB_TOTAL_CONFIG_LEN not defined correctly
#endif

//////////////////////////////////////////////////////////////////
///
/// start device descriptors
///
//////////////////////////////////////////////////////////////////

const char USB_DEVICE_DESC[USB_DESC_DEVICE_LEN] ={
//starts of with device configuration. only one possible
USB_DESC_DEVICE_LEN, //the length of this report ==0
0x01, //the constant DEVICE (DEVICE 0x01) ==1
0x00,0x02, //usb version in bcd 2.0 ==3,4
//0x10,0x01, //usb version in bcd ==2,3
0x00, //class code. 0x02=Communication Device Class ==4
0x00, //subclass code ==5
0x00, //protocol code ==6
USB_MAX_EP0_PACKET_LENGTH, //max packet size for endpoint 0. (SLOW SPEED SPECIFIES 8) ==7
0x61,0x04, //vendor id (0x04D8 is Microchip, or is it 0x0461 ??) ==8,9
0x55,0x00, //product id ==10,11
0x00,0x01, //device release number ==12,13
0x01, //index of string description of manufacturer. therefore we point to string_1 array (see below) ==14
0x02, //index of string descriptor of the product ==15
0x00, //index of string descriptor of serial number ==16
USB_NUM_CONFIGURATIONS //number of possible configurations ==17
};

#if (sizeof(USB_DEVICE_DESC) != USB_DESC_DEVICE_LEN)
#error USB_DESC_DEVICE_LEN not defined correctly
#endif

Do you have any idea what is wrong ?

Regards

NicolasC

Joined: 14 Sep 2006
Posts: 27

Posted: Tue Aug 14, 2007 1:04 am

I corrected a few errors in the above code and now the emuneration succeed.

I have now HID+KBD+CDC

Quote:

//NOTE: DO TO A LIMITATION OF THE CCS CODE, ALL HID INTERFACES MUST START AT 0 AND BE SEQUENTIAL

I changed USB_CDC_COMM_XX_ENDPOINT accordantly.

When installing, I'm prompted for the CDC driver, but install fails.
HID+KBD are OK

I saw on the microchip forum

Quote:

-Make sure the descriptor CDC readout is first (as number of EPs)

Is it linked to microchip library or to windows enum process ?

NicolasC

Joined: 14 Sep 2006
Posts: 27


Posted: Thu Aug 16, 2007 3:28 pm

It seems to related to the inf file: 'Can't find any information related to your hardaware ' (tanslated in english by me) As CDC is now in a compound device, do I have to modify the inf file ?

Guest

Posted: Fri Aug 17, 2007 7:31 am

Have you changed the PID or the VID? If so, yes.

NicolasC wrote:

It seems to related to the inf file:
'Can't find any information related to your hardaware ' (tanslated in english by me)

As CDC is now in a compound device, do I have to modify the inf file ?

NicolasC

Joined: 14 Sep 2006
Posts: 27

Posted: Fri Aug 17, 2007 11:23 am

Anonymous wrote:

Have you changed the PID or the VID? If so, yes.

Thanks for your answer because this now drives me crasy.
Yes I updated the PID and VIP.

I found in "Device Installation: Windows DDK" that composite device may need the following statement:

Code:

[DDInstall]
Include = AnotherINFFile.inf
Needs = AnotherINFFileDDInstall

[DDInstall.Services]
Include = AnotherINFFile.inf
Needs = AnotherINFFileDDInstall.Services

but I still can't figure out how to use it. RTFM ?

Guest

Posted: Fri Aug 17, 2007 1:22 pm

Hi´, I´m the same anonymous Smile

See if this helps you:

www (dot) osronline (dot) com/DDKx/buses/usbsystem_515z.htm

Please report back, i´m curious to know about a composite device made with a PIC working Smile

NicolasC wrote:

Anonymous wrote:

Have you changed the PID or the VID? If so, yes.

Thanks for your answer because this now drives me crasy.
Yes I updated the PID and VIP.

I found in "Device Installation: Windows DDK" that composite device may need the following statement:

Code:

[DDInstall]
Include = AnotherINFFile.inf
Needs = AnotherINFFileDDInstall

[DDInstall.Services]
Include = AnotherINFFile.inf
Needs = AnotherINFFileDDInstall.Services

but I still can't figure out how to use it. RTFM ?

NicolasC

Joined: 14 Sep 2006
Posts: 27

Posted: Fri Aug 17, 2007 4:18 pm

I found a mistake I did when I update the inf file:

Code:

[CCS]
%CCS_CDC%=Reader, USB\VID_0461&PID_0055\MI_03

was wrong

Code:

[CCS]
%CCS_CDC%=Reader, USB\VID_0461&PID_0055&MI_03

load the driver. Smile

but the interface refuse to start.
I ll keep you posted

Thanks again for the hint anonymous Smile

NicolasC

Joined: 14 Sep 2006
Posts: 27

Posted: Sat Aug 25, 2007 8:17 am

Hi
Here's the descriptor with all the errors (I founded) fixed.
The modified cdc_NTXP.inf file is accepted on enumeration but I have then the follwing error :

Quote:

The device can't start (error 10)

Then I'm prompted again for a inf file, probably for the fourth interface : it seems that the control and the data interfaces are not read as a union.
Any hint ?

Code:

const char USB_CLASS_SPECIFIC_DESC[] = {
//hid report descriptor for interface 0 (joystick)
0x05, 0x01, // Usage Page = Generic Desktop ==0,1
0x09, 0x04, // Usage = Joystick ==2,3
0xA1, 0x01, // Collection = Application ==4,5
0x09, 0x33, // Usage (Rx) ==6,7
0x09, 0x34, // Usage (Ry) ==8,9
0x09, 0x35, // Usage (Ry) ==10,11
0x09, 0x36, // Usage (Slider) ==12,13
0x15, 0x00, // Logical Minimum (0) ==14,15
0x26, 0xFF,0x03, // Logical Maximum (1023) ==16,17,18
0x35, 0x00, // Physical Minimum (0) ==19,20
0x46, 0xFF,0x03, // Physical Maximum (1023) ==21,22,23
0x75, 0x0A, // Report Size (10) 10 bits ==24,25
0x95, 0x04, // Report Count (4) ==26,27
0x81, 0x02, // Input (Data,Var,Abs) ==28,29
0xC0, // End Collection ==30

//hid report descriptor for interface 1 (keyboard)
0x05, 0x01, //usage page (generic desktop) ==31, 32
0x09, 0x06, //usage (keyboard) ==33, 34
0xA1, 0x01, //collection (application) ==35, 36
0x05, 0x07, //usage page (key codes) ==37, 38
0x19, 0xE0, //usage min (224) ==39, 40
0x29, 0xE7, //usage max (231) ==41, 42
0x15, 0x00, //logical min (0) ==43, 44
0x25, 0x01, //logical max (1) ==45, 46
0x75, 0x01, //report size (1) ==47, 48
0x95, 0x08, //report count (8) ==49, 50
0x81, 0x02, //input (data, variable, absolute) [modifier byte] ==51, 52
0x95, 0x01, //report count (1) ==53, 54
0x75, 0x08, //report size (8) ==55, 56
0x81, 0x01, //input (constant) [reserved byte] ==57, 58
0x95, 0x05, //report count (5) ==59, 60
0x75, 0x01, //report size (1) ==61, 62
0x05, 0x08, //usage page (page# for leds) ==63, 64
0x19, 0x01, //usage min (1) ==65, 66
0x29, 0x05, //usage max (5) ==67, 68
0x91, 0x02, //output (data, var, abs) [led report] ==69, 70
0x95, 0x01, //report count (1) ==71, 72
0x75, 0x03, //report size (3) ==73, 74
0x91, 0x01, //output (constant) [led report padding] ==75, 76
0x95, 0x05, //report count (5) ==77, 78
0x75, 0x08, //report size (8) ==79, 80
0x15, 0x00, //logical min (0) ==81, 82
0x25, 0x65, //logical max (101) ==83, 84
0x05, 0x07, //usage page (key codes) ==85, 86
0x19, 0x00, //usage min (0) ==87, 88
0x29, 0x65, //usage max (101) ==89, 90
0x81, 0x00, //input (data, array) ==91, 92
0xC0 //end collection ==93
};

//if a class has an extra descriptor not part of the config descriptor,
// this lookup table defines where to look for it in the const
// USB_CLASS_SPECIFIC_DESC[] array.
//first element is the config number (if your device has more than one config)
//second element is which interface number
//set element to 0xFFFF if this config/interface combo doesn't exist
//Idx in USB_CLASS_SPECIFIC_DESC
const int16 USB_CLASS_SPECIFIC_DESC_LOOKUP[USB_NUM_CONFIGURATIONS][2] =
{
//config 1
//interface 0
0,
//interface 1
31
};

//if a class has an extra descriptor not part of the config descriptor,
// this lookup table defines the size of that descriptor.
//first element is the config number (if your device has more than one config)
//second element is which interface number
//set element to 0xFFFF if this config/interface combo doesn't exist
const int16 USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[USB_NUM_CONFIGURATIONS][2] =
{
//config 1
//interface 0
31,
//interface 1
63
};

//////////////////////////////////////////////////////////////////
///
/// start config descriptor
/// right now we only support one configuration descriptor.
/// the config, interface, class, and endpoint goes into this array.
///
//////////////////////////////////////////////////////////////////

#DEFINE USB_TOTAL_CONFIG_LEN 124 //config+interface+class+endpoint

const char USB_CONFIG_DESC[] = {
//IN ORDER TO COMPLY WITH WINDOWS HOSTS, THE ORDER OF THIS ARRAY MUST BE:
// config(s)
// interface(s)
// class(es)
// endpoint(s)

//config_descriptor for config index 1
USB_DESC_CONFIG_LEN, //length of descriptor size ==0
USB_DESC_CONFIG_TYPE, //constant CONFIGURATION (CONFIGURATION 0x02) ==1
USB_TOTAL_CONFIG_LEN,0, //size of all data returned for this config ==2,3
4, //number of interfaces this device supports ==4
0x01, //identifier for this configuration. (IF we had more than one configurations) ==5
0x00, //index of string descriptor for this configuration ==6
0xC0, //bit 6=1 if self powered, bit 5=1 if supports remote wakeup (we don't), bits 0-4 unused and bit7=1 ==7
0x32, //maximum bus power required (maximum milliamperes/2) (0x32 = 100mA) == 8

//interface descriptor 0 (HID)
USB_DESC_INTERFACE_LEN, //length of descriptor == 9
USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04) ==10
0x00, //number defining this interface (IF we had more than one interface) ==11
0x00, //alternate setting ==12
1, //number of endpoints for this interface ==13
0x03, //class code, 03 = HID ==14
0x00, //subclass code //boot ==15
0x00, //protocol code ==16
0x00, //index of string descriptor for interface ==17

//class descriptor 0 (HID)
USB_DESC_CLASS_LEN, //length of descriptor ==18
USB_DESC_CLASS_TYPE, //dscriptor type (0x21 == HID) ==19
0x00,0x01, //hid class release number (1.0) (try 1.10) ==20,21
0x00, //localized country code (0 = none) ==22
0x01, //number of hid class descrptors that follow (1) ==23
USB_DESC_HIDREPORT_TYPE, //report descriptor type (0x22 == HID) ==24
USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[0][0], 0x00, //length of report descriptor ==25,26

//endpoint descriptor 0
USB_DESC_ENDPOINT_LEN, //length of descriptor ==27
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==28
USB_EP_JOY_IN_ENDPOINT | 0x80, //endpoint number and direction (0x81 = EP1 IN) ==29
USB_ENDPOINT_TYPE_INTERRUPT, //transfer type supported (0x03 is interrupt) ==30
USB_EP_JOY_TX_SIZE,0x00, //maximum packet size supported ==31,32
2, //polling interval, in ms. (cant be smaller than 10 for slow speed devices) ==33

//interface descriptor 1 (KEYBOARD)
USB_DESC_INTERFACE_LEN, //length of descriptor ==34
USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04) ==35
0x01, //number defining this interface (IF we had more than one interface) ==36
0x00, //alternate setting ==37
2, //number of endpoints for this interface ==38
0x03, //class code, 03 = HID ==39
0x01, //subclass code //boot ==40
0x01, //protocol code (keyboard) ==41
0x00, //index of string descriptor for interface ==42

//class descriptor 1 (KEYBOARD)
USB_DESC_CLASS_LEN, //length of descriptor ==43
USB_DESC_CLASS_TYPE, //dscriptor type (0x21 == HID) ==44
0x00,0x01, //hid class release number (1.0) (try 1.10) ==45,46
0x00, //localized country code (0 = none) ==47
0x01, //number of hid class descriptors that follow (1) ==48
USB_DESC_HIDREPORT_TYPE, //report descriptor type (0x22 == HID) ==49
USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[0][1], 0x00, //length of report descriptor ==50,51

//endpoint descriptor 1 IN
USB_DESC_ENDPOINT_LEN, //length of descriptor ==52
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==53
USB_EP_KBD_IN_ENDPOINT | 0x80, //endpoint number and direction (0x81 = EP1 IN) ==54
USB_ENDPOINT_TYPE_INTERRUPT, //transfer type supported (0x03 is interrupt) ==55
USB_EP_KBD_TX_SIZE,0x00, //maximum packet size supported ==56,57
10, //polling interval, in ms. (cant be smaller than 10 for slow speed devices)==58

//endpoint descriptor 1 OUT
USB_DESC_ENDPOINT_LEN, //length of descriptor ==59
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==60
USB_EP_KBD_OUT_ENDPOINT, //endpoint number and direction (0x81 = EP1 IN) ==61
USB_ENDPOINT_TYPE_INTERRUPT, //transfer type supported (0x03 is interrupt) ==62
USB_EP_KBD_RX_SIZE,0x00, //maximum packet size supported ==63,64
10 //polling interval, in ms. (cant be smaller than 10 for slow speed devices) ==65

//interface descriptor 2 (comm class interface)
USB_DESC_INTERFACE_LEN, //length of descriptor ==66
USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04) ==67
0x02, //number defining this interface (IF we had more than one interface) ==68
0x00, //alternate setting ==69
1, //number of endpoints ==70
0x02, //class code, 02 = Comm Interface Class ==71
0x02, //subclass code, 2 = Abstract ==72
0x01, //protocol code, 1 = v.25ter ==73
0x00, //index of string descriptor for interface ==74

//class descriptor [functional header]
5, //length of descriptor ==75
0x24, //dscriptor type (0x24 == ) ==76
0, //sub type (0=functional header) ==77
0x00,0x02, // cdc version ==78,79

//class descriptor [acm header]
4, //length of descriptor ==80
0x24, //dscriptor type (0x24 == ) ==81
2, //sub type (2=ACM) ==82
2, //capabilities ==83 //we support Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State.

//class descriptor [union header]
5, //length of descriptor ==84
0x24, //dscriptor type (0x24 == ) ==85
6, //sub type (6=union) ==86
2, //master intf ==87 //The interface number of the Communication or Data Class interface, designated as the master or controlling interface for the union.
3, //save intf0 ==88 //Interface number of first slave or associated interface in the union. *

//class descriptor [call mgmt header]
5, //length of descriptor ==89
0x24, //dscriptor type (0x24 == ) ==90
1, //sub type (1=call mgmt) ==91
0, //capabilities ==92 //device does not handle call management itself
3, //data interface ==93 //interface number of data class interface

//endpoint descriptor
USB_DESC_ENDPOINT_LEN, //length of descriptor ==94
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==95
USB_CDC_COMM_IN_ENDPOINT | 0x80, //endpoint number and direction ==96
0x03, //transfer type supported (0x03 is interrupt) ==97
USB_CDC_COMM_IN_SIZE,0x00, //maximum packet size supported ==98,99
250, //polling interval, in ms. (cant be smaller than 10) ==100

//interface descriptor 3 (data class interface)
USB_DESC_INTERFACE_LEN, //length of descriptor ==101
USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04) ==102
0x03, //number defining this interface (IF we had more than one interface) ==103
0x00, //alternate setting ==104
2, //number of endpoints ==105
0x0A, //class code, 0A = Data Interface Class ==106
0x00, //subclass code ==107
0x00, //protocol code ==108
0x00, //index of string descriptor for interface ==109

//endpoint descriptor
USB_DESC_ENDPOINT_LEN, //length of descriptor ==110
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==111
USB_CDC_DATA_OUT_ENDPOINT, //endpoint number and direction (0x02 = EP2 OUT) ==112
0x02, //transfer type supported (0x02 is bulk) ==113
USB_CDC_DATA_OUT_SIZE & 0xFF, (USB_CDC_DATA_OUT_SIZE >> 8) & 0xFF, //maximum packet size supported ==114, 115
250, //polling interval, in ms. (cant be smaller than 10) ==116

//endpoint descriptor
USB_DESC_ENDPOINT_LEN, //length of descriptor ==117
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==118
USB_CDC_DATA_IN_ENDPOINT | 0x80, //endpoint number and direction (0x82 = EP2 IN) ==119
0x02, //transfer type supported (0x02 is bulk) ==120
USB_CDC_DATA_IN_SIZE & 0xFF, (USB_CDC_DATA_IN_SIZE >> 8) & 0xFF, //maximum packet size supported ==121, 122
250, //polling interval, in ms. (cant be smaller than 10) ==123
};

//****** BEGIN CONFIG DESCRIPTOR LOOKUP TABLES ********
//since we can't make pointers to constants in certain pic16s, this is an offset table to find
// a specific descriptor in the above table.

//NOTE: DO TO A LIMITATION OF THE CCS CODE, ALL HID INTERFACES MUST START AT 0 AND BE SEQUENTIAL
// FOR EXAMPLE, IF YOU HAVE 2 HID INTERFACES THEY MUST BE INTERFACE 0 AND INTERFACE 1
#define USB_NUM_HID_INTERFACES 2

//the maximum number of interfaces seen on any config
//for example, if config 1 has 1 interface and config 2 has 2 interfaces you must define this as 2
#define USB_MAX_NUM_INTERFACES 4

//define how many interfaces there are per config. [0] is the first config, etc.
const char USB_NUM_INTERFACES[USB_NUM_CONFIGURATIONS]={4};

//define where to find class descriptors
//first dimension is the config number
//second dimension specifies which interface
//last dimension specifies which class in this interface to get, but most will only have 1 class per interface
//if a class descriptor is not valid, set the value to 0xFFFF
//Idx class in USB_CONFIG_DESC
const int16 USB_CLASS_DESCRIPTORS[USB_NUM_CONFIGURATIONS][USB_MAX_NUM_INTERFACES][4]=
{
//config 1

//interface 0
//class 1-4
18,0xFFFF,0xFFFF,0xFFFF
//interface 1
//no classes for this interface
43,0xFFFF,0xFFFF,0xFFFF
//interface 3
75,80,84,89,
//interface 4
0xFFFF,0xFFFF,0xFFFF,0xFFFF
};

//****** END CONFIG DESCRIPTOR LOOKUP TABLES ********

#if (sizeof(USB_CONFIG_DESC) != USB_TOTAL_CONFIG_LEN)
#error USB_TOTAL_CONFIG_LEN not defined correctly
#endif

//////////////////////////////////////////////////////////////////
///
/// start device descriptors
///
//////////////////////////////////////////////////////////////////

const char USB_DEVICE_DESC[USB_DESC_DEVICE_LEN] ={
//starts of with device configuration. only one possible
USB_DESC_DEVICE_LEN, //the length of this report ==1
0x01, //the constant DEVICE (DEVICE 0x01) ==2
0x00,0x02, //usb version in bcd 2.0 ==3,4
0x00, //class code ==5
0x00, //subclass code ==6
0x00, //protocol code ==7
USB_MAX_EP0_PACKET_LENGTH, //max packet size for endpoint 0. (SLOW SPEED SPECIFIES 8) ==8
0x61,0x04, //vendor id (0x04D8 is Microchip, or is it 0x0461 ??) ==9,10
0x55,0x00, //product id ==11,12
0x00,0x01, //device release number ==13,14
0x01, //index of string description of manufacturer. therefore we point to string_1 array (see below)==15
0x02, //index of string descriptor of the product ==16
0x00, //index of string descriptor of serial number ==17
USB_NUM_CONFIGURATIONS //number of possible configurations ==18
};

Last edited by NicolasC on Tue Aug 28, 2007 5:02 am; edited 1 time in total

Guest


Posted: Mon Aug 27, 2007 5:22 am

See if this hepls you www (dot) cygna (dot) org/ubb/Forum9/HTML/001050.html

NicolasC

Joined: 14 Sep 2006
Posts: 27


Posted: Mon Aug 27, 2007 5:55 am

Thanks Guest It seems to be what I need I 'll have a close look PS: a letter was drop in the above post http://www.cygnal.org/ubb/Forum9/HTML/001050.html

NicolasC

Joined: 14 Sep 2006
Posts: 27


Posted: Tue Sep 04, 2007 2:57 am

Hil all Couldn't find anything to solve my problem but my descriptor seems to be ok. If so the trouble then must come from the modifications I made in CCS demo file in order to compile CDC and HID in the same project (ifdef CDC and ifdef HID where quite "exclusive"). Debugging this will not be easy :( Regards Nicolas

Ttelmah
Guest


Posted: Tue Sep 04, 2007 4:01 am

As a comment, have you got SP2 loaded on the (presumably XP) machine you are using to test?. There were historical problems with usbser.sys, when it was used in a composite device. Have a look at the MS knowledgebase article 918365. SP2, is meant to fix this. Best Wishes

NicolasC

Joined: 14 Sep 2006
Posts: 27


Posted: Thu Sep 06, 2007 6:22 am

I installed the hotfix. Things changed a bit: I'm prompted twice for driver for the 2 last interfaces ("Comm Interface Class" and "data class interface") and 2 comport are added . Then the device manager display a working icon for the first one. (Of course openning this com fails ) I'm afraid this king of device support is broken under Windows : http://www.usb.org/phpbb/viewtopic.php?p=45645#45645 Nicolas

NicolasC

Joined: 14 Sep 2006
Posts: 27

Posted: Wed Sep 12, 2007 3:09 am

This kind of compound device is working using Microchip USB framework, but

Quote:

-Make sure the descriptor CDC readout is first (as number of EPs)

that is incompatible with CCS USB library:

Quote:

//NOTE: DO TO A LIMITATION OF THE CCS CODE, ALL HID INTERFACES MUST START AT 0 AND BE SEQUENTIAL

I couldn't found any workaround :(

Guest


Posted: Wed Sep 12, 2007 7:20 am

What makes necessary to put CDC first? Windows, INF file or something else? (the same Guest again... i think I should make an account )

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