---------- Weitergeleitete Nachricht ----------
Subject: Fwd: Recieving data from HID with libhid (wrong attachment)
Date: Freitag, 4. November 2005 16:05
From: "Obrist Günther (AUT Wien Entwicklung)" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Hi, it s me again, my output attachment was the wrong one...)
Could you tell me please what this error message means and why it occurs?
requested: 12 bytes, got: 1 bytes
hid_get_input_report failed with return code 20
What have I to change in my program (see attachment)? Do you have some tips
for me or for what I have to look for?
Greetings
-------------------------------------------------------
--
Günther Obrist
[EMAIL PROTECTED]
Moeller Gebäudeautomation KG
Scheydgasse 42, 1215 Wien
AUT Entwicklung Wien
-------------------------------------------------------
--
Günther Obrist
[EMAIL PROTECTED]
Moeller Gebäudeautomation KG
Scheydgasse 42, 1215 Wien
AUT Entwicklung Wien
#include <hid.h>
#include <stdio.h>
#include <string.h>
bool match_serial_number(struct usb_dev_handle* usbdev, void* custom,
unsigned int len)
{
bool ret;
char* buffer = (char*)malloc(len);
usb_get_string_simple(usbdev,
usb_device(usbdev)->descriptor.iSerialNumber, buffer, len);
ret = strncmp(buffer, (char*)custom, len) == 0;
free(buffer);
return ret;
}
//*****************************************************************
//*************** Funktion ************************
//*****************************************************************
int gethexvalue(char tok)
{
int ret = 0;
if(tok >= '0' && tok <= '9')
return (int)tok - '0';
else if(tok >= 'A' && tok <= 'F')
return (int)tok - 'A'+ 10;
else if(tok >= 'a' && tok <= 'f')
return (int)tok - 'a'+ 10;
else return -1;
}
//*****************************************************************
//*************** MAIN ************************
//*****************************************************************
int main(int argc, char *argv[])
{
int i, strent, value_length, shiftval;
unsigned long bitvalue = 0;
char *argvwert;
char feld[5];
char PACKET[5];
#define PATHLEN 3
int const PATH_IN[] = { 0xffa00001, 0xffa00002, 0xffa10003 };
int const PATH_OUT[] = { 0xffa00001, 0xffa00002, 0xffa10005 };
HIDInterface* hid;
hid_return ret;
for(i = 1; i < argc; i++) {
argvwert = argv[i];
value_length = strlen(argvwert); //Ermittlung der Länge eines Strings
if(value_length <= 8) { // 32 bit Wert
for(strent = 0; strent < value_length; strent++) {
shiftval = gethexvalue(argvwert[strent]);
if(shiftval < 0) return 0;
bitvalue |= shiftval << (((value_length - strent - 1)) * 4);
shiftval = 0;
}
}
PACKET[i-1] = bitvalue;
//printf(" %d %X\n", bitvalue, bitvalue);//Edit
bitvalue = 0;
}
for(i=0;i<sizeof(feld);i++)
printf("Wert 1: %x-12\n", feld[i]);
HIDInterfaceMatcher matcher = { 0x03eb, 0x0001, NULL, NULL, 0 };
/* see include/debug.h for possible values */
hid_set_debug(HID_DEBUG_ALL);
hid_set_debug_stream(stderr);
/* passed directly to libusb */
hid_set_usb_debug(0);
ret = hid_init();
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_init failed with return code %d\n", ret);
return 1;
}
hid = hid_new_HIDInterface();
if (hid == 0) {
fprintf(stderr, "hid_new_HIDInterface() failed, out of memory?\n");
return 1;
}
ret = hid_force_open(hid, 0, &matcher, 3);
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_force_open failed with return code %d\n", ret);
return 1;
}
ret = hid_write_identification(stdout, hid);
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_write_identification failed with return code %d\n", ret);
return 1;
}
ret = hid_dump_tree(stdout, hid);
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_dump_tree failed with return code %d\n", ret);
return 1;
}
//*********************************************
//*****************SEND************************
//********************************************
unsigned char const SEND_PACKET_LEN = 5;
// fill an example packet:
ret = hid_set_output_report(hid, PATH_OUT, PATHLEN, PACKET, SEND_PACKET_LEN);
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_set_output_report failed with return code %d\n", ret);
}
//*********************************************
//*****************RECV************************
//********************************************
unsigned char const RECV_PACKET_LEN = 12;
printf("***************\n");
printf("***RECIEVING***\n");
printf("***************\n");
char packet[RECV_PACKET_LEN];
ret = hid_get_input_report(hid, PATH_OUT, PATHLEN, packet, RECV_PACKET_LEN);
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_get_input_report failed with return code %d\n", ret);
}
// now use the RECV_PACKET_LEN bytes starting at *packet.
ret = hid_close(hid);
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_close failed with return code %d\n", ret);
return 1;
}
hid_delete_HIDInterface(&hid);
ret = hid_cleanup();
if (ret != HID_RET_SUCCESS) {
fprintf(stderr, "hid_cleanup failed with return code %d\n", ret);
return 1;
}
return 0;
}
ewien-134:/home/ogu1234/test# ./librcv
Wert 1: 0-12
Wert 1: 0-12
Wert 1: 0-12
Wert 1: 0-12
Wert 1: ffffff84-12
TRACE: hid_init(): initialising USB subsystem...
TRACE: hid_init(): scanning for USB busses...
TRACE: hid_init(): scanning for USB devices...
NOTICE: hid_init(): successfully initialised HID library.
TRACE: hid_new_HIDInterface(): creating a new HIDInterface instance...
TRACE: hid_force_open(): forcefully opening a device interface according to
matching criteria...
TRACE: hid_get_usb_handle(): acquiring handle for a USB device...
TRACE: hid_find_usb_device(): enumerating USB busses...
TRACE: hid_find_usb_device(): enumerating USB devices on bus 002...
TRACE: hid_find_usb_device(): inspecting USB device 002/001[0]...
TRACE: hid_compare_usb_device(): comparing match specifications to USB
device...
TRACE: hid_compare_usb_device(): inspecting vendor ID...
TRACE: hid_compare_usb_device(): no match on vendor ID.
TRACE: hid_compare_usb_device(): inspecting product ID...
TRACE: hid_compare_usb_device(): no match on product ID.
TRACE: hid_compare_usb_device(): no custom matching function supplied.
NOTICE: hid_find_usb_device(): vendor 0x0000 of USB device 002/001[0] does not
match 0x03eb.
TRACE: hid_find_usb_device(): enumerating USB devices on bus 001...
TRACE: hid_find_usb_device(): inspecting USB device 001/003[0]...
TRACE: hid_compare_usb_device(): comparing match specifications to USB
device...
TRACE: hid_compare_usb_device(): inspecting vendor ID...
TRACE: hid_compare_usb_device(): match on vendor ID: 0x03eb.
TRACE: hid_compare_usb_device(): inspecting product ID...
TRACE: hid_compare_usb_device(): match on product ID: 0x0001.
TRACE: hid_compare_usb_device(): no custom matching function supplied.
NOTICE: hid_find_usb_device(): found a matching USB device 001/003[0].
TRACE: hid_force_open(): claiming USB device 001/003[0].
NOTICE: hid_force_open(): successfully claimed USB device 001/003[0].
TRACE: hid_init_parser(): initialising the HID parser for USB Device
001/003[0]...
TRACE: hid_init_parser(): allocating space for HIDData structure...
TRACE: hid_init_parser(): successfully allocated memory for HIDData strcture.
TRACE: hid_init_parser(): allocating space for HIDParser structure...
TRACE: hid_init_parser(): successfully allocated memory for HIDParser
strcture.
NOTICE: hid_init_parser(): successfully initialised the HID parser for USB
Device 001/003[0].
TRACE: hid_prepare_hid_descriptor(): initialising the HID descriptor for USB
device 001/003[0]...
TRACE: hid_prepare_hid_descriptor(): retrieving HID descriptor for USB device
001/003[0]...
NOTICE: hid_prepare_hid_descriptor(): successfully initialised HID descriptor
for USB device 001/003[0].
TRACE: hid_prepare_report_descriptor(): initialising the report descriptor
for USB device 001/003[0]...
TRACE: hid_prepare_report_descriptor(): retrieving report descriptor for USB
device 001/003[0]...
NOTICE: hid_prepare_report_descriptor(): successfully initialised report
descriptor for USB device 001/003[0].
TRACE: hid_prepare_parser(): setting up the HID parser for USB device
001/003[0]...
TRACE: hid_reset_parser(): resetting the HID parser for USB device
001/003[0]...
TRACE: hid_prepare_parser(): dumping the raw report descriptor
TRACE: hid_prepare_parser(): 0x000: 0x06 0xa0 0xff 0x09 0x01 0xa1 0x01 0x09
TRACE: hid_prepare_parser(): 0x008: 0x02 0xa1 0x00 0x06 0xa1 0xff 0x09 0x03
TRACE: hid_prepare_parser(): 0x010: 0x09 0x04 0x15 0x00 0x25 0xff 0x35 0x00
TRACE: hid_prepare_parser(): 0x018: 0x45 0xff 0x75 0x08 0x95 0x0b 0x81 0x02
TRACE: hid_prepare_parser(): 0x020: 0x09 0x05 0x09 0x06 0x15 0x00 0x25 0xff
TRACE: hid_prepare_parser(): 0x028: 0x35 0x00 0x45 0xff 0x75 0x08 0x95 0x05
TRACE: hid_prepare_parser(): 0x030: 0x91 0x02 0xc0 0xc0
TRACE: hid_prepare_parser(): parsing the HID tree of USB device 001/003[0]...
NOTICE: hid_prepare_parser(): successfully set up the HID parser for USB
device 001/003[0].
NOTICE: hid_force_open(): successfully opened USB device 001/003[0].
device identification of HIDInterface 001/003[0]:
dev_handle: 0x0804b0b8
device: 0x08050148
location: 001/003
manufacturer: MOELLER
product: MOELLER USB Gateway
serial number: 1.0.0
TRACE: hid_reset_parser(): resetting the HID parser for USB device
001/003[0]...
TRACE: hid_dump_tree(): iterating the parse tree for USB device 001/003[0]...
parse tree of HIDInterface 001/003[0]:
path: 0xffa00001.0xffa00002.0xffa10003; type: 0x80
path: 0xffa00001.0xffa00002.0xffa10004; type: 0x80
path: 0xffa00001.0xffa00002.0x00000000; type: 0x80
path: 0xffa00001.0xffa00002.0x00000000; type: 0x80
path: 0xffa00001.0xffa00002.0x00000000; type: 0x80
path: 0xffa00001.0xffa00002.0x00000000; type: 0x80
path: 0xffa00001.0xffa00002.0x00000000; type: 0x80
path: 0xffa00001.0xffa00002.0x00000000; type: 0x80
path: 0xffa00001.0xffa00002.0x00000000; type: 0x80
path: 0xffa00001.0xffa00002.0x00000000; type: 0x80
path: 0xffa00001.0xffa00002.0x00000000; type: 0x80
path: 0xffa00001.0xffa00002.0xffa10005; type: 0x90
path: 0xffa00001.0xffa00002.0xffa10006; type: 0x90
path: 0xffa00001.0xffa00002.0x00000000; type: 0x90
path: 0xffa00001.0xffa00002.0x00000000; type: 0x90
path: 0xffa00001.0xffa00002.0x00000000; type: 0x90
TRACE: hid_reset_parser(): resetting the HID parser for USB device
001/003[0]...
TRACE: hid_set_output_report(): sending report to USB device 001/003[0]...
TRACE: hid_prepare_parse_path(): preparing search path of depth 3 for parse
tree of USB device 001/003[0]...
TRACE: hid_prepare_parse_path(): search path prepared for parse tree of USB
device 001/003[0].
NOTICE: hid_find_object(): found requested item.
NOTICE: hid_set_output_report(): successfully sent report to USB device
001/003[0].
***************
***RECIEVING***
***************
TRACE: hid_get_input_report(): retrieving report from USB device 001/003[0]...
TRACE: hid_prepare_parse_path(): preparing search path of depth 3 for parse
tree of USB device 001/003[0]...
TRACE: hid_prepare_parse_path(): search path prepared for parse tree of USB
device 001/003[0].
NOTICE: hid_find_object(): found requested item.
WARNING: hid_get_input_report(): failed to retrieve complete report from USB
device 001/003[0]; requested: 12 bytes, got: 1 bytes.
hid_get_input_report failed with return code 20
TRACE: hid_close(): closing USB device 001/003[0]...
TRACE: hid_close(): closing handle of USB device 001/003[0]...
NOTICE: hid_close(): successfully closed USB device 001/003[0].
TRACE: hid_reset_parser(): resetting the HID parser for USB device
001/003[0]...
TRACE: hid_close(): freeing memory allocated for HID parser...
TRACE: hid_close(): resetting HIDInterface...
NOTICE: hid_cleanup(): successfully deinitialised HID library.
