Charles, Below is the entire output of the program:
usb_set_debug: Setting debugging level to 6 (on) NOTICE: hid_init(): libhid 0.2.16.0.0 is being initialized. TRACE: hid_init(): initialising USB subsystem... usb_os_init: Found USB VFS at /proc/bus/usb TRACE: hid_init(): scanning for USB busses... usb_os_find_busses: Skipping non bus directory devices usb_os_find_busses: Skipping non bus directory drivers usb_os_find_busses: Found 005 usb_os_find_busses: Found 004 usb_os_find_busses: Found 003 usb_os_find_busses: Found 002 usb_os_find_busses: Found 001 TRACE: hid_init(): scanning for USB devices... usb_os_find_devices: Found 001 on 005 usb_os_find_devices: Found 002 on 005 skipped 1 class/vendor specific interface descriptors usb_os_find_devices: Found 001 on 004 usb_os_find_devices: Found 001 on 003 usb_os_find_devices: Found 001 on 002 usb_os_find_devices: Found 001 on 001 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 005... TRACE: hid_find_usb_device(): inspecting USB device 005/001[0]... Check that you have permissions to write to 005/001 and, if you don't, that you set up hotplug (http://linux-hotplug.sourceforge.net/) correctly. USB error: could not claim interface 0: Device or resource busy 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 005/001[0] does not match 0x0483. TRACE: hid_find_usb_device(): inspecting USB device 005/002[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: 0x0483. TRACE: hid_compare_usb_device(): inspecting product ID... TRACE: hid_compare_usb_device(): match on product ID: 0x0035. TRACE: hid_compare_usb_device(): no custom matching function supplied. NOTICE: hid_find_usb_device(): found a matching USB device 005/002[0]. TRACE: hid_force_open(): claiming USB device 005/002[0]. NOTICE: hid_force_open(): successfully claimed USB device 005/002[0]. TRACE: hid_init_parser(): initialising the HID parser for USB Device 005/002[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 005/002[0]. TRACE: hid_prepare_hid_descriptor(): initialising the HID descriptor for USB device 005/002[0]... TRACE: hid_prepare_hid_descriptor(): retrieving HID descriptor for USB device 005/002[0]... NOTICE: hid_prepare_hid_descriptor(): successfully initialised HID descriptor for USB device 005/002[0] (29 bytes). TRACE: hid_prepare_report_descriptor(): initialising the report descriptor for USB device 005/002[0]... TRACE: hid_prepare_report_descriptor(): retrieving report descriptor for USB device 005/002[0]... NOTICE: hid_prepare_report_descriptor(): successfully initialised report descriptor for USB device 005/002[0]. TRACE: hid_prepare_parser(): setting up the HID parser for USB device 005/002[0]... TRACE: hid_reset_parser(): resetting the HID parser for USB device 005/002[0]... TRACE: hid_prepare_parser(): dumping the raw report descriptor TRACE: hid_prepare_parser(): 0x000: 0x06 0x80 0xff 0x09 0x00 0xa1 0x01 0x75 TRACE: hid_prepare_parser(): 0x008: 0x08 0x95 0x08 0x15 0x00 0x26 0xff 0x00 TRACE: hid_prepare_parser(): 0x010: 0x09 0x01 0xb1 0x82 0x09 0x01 0x81 0x82 TRACE: hid_prepare_parser(): 0x018: 0x09 0x02 0x91 0x82 0xc0 TRACE: hid_prepare_parser(): parsing the HID tree of USB device 005/002[0]... NOTICE: hid_prepare_parser(): successfully set up the HID parser for USB device 005/002[0]. NOTICE: hid_force_open(): successfully opened USB device 005/002[0]. device identification of HIDInterface 005/002[0]: dev_handle: 0x0804a0a0 device: 0x08051190 location: 005/002 manufacturer: STMicroelectronics product: ST7 RS232 USB BRIDGE TRACE: hid_reset_parser(): resetting the HID parser for USB device 005/002[0]... TRACE: hid_dump_tree(): iterating the parse tree for USB device 005/002[0]... parse tree of HIDInterface 005/002[0]: path: 0xff800000.0xff800001; type: 0xb0 path: 0xff800000.0x00000000; type: 0xb0 path: 0xff800000.0x00000000; type: 0xb0 path: 0xff800000.0x00000000; type: 0xb0 path: 0xff800000.0x00000000; type: 0xb0 path: 0xff800000.0x00000000; type: 0xb0 path: 0xff800000.0x00000000; type: 0xb0 path: 0xff800000.0x00000000; type: 0xb0 path: 0xff800000.0xff800001; type: 0x80 path: 0xff800000.0x00000000; type: 0x80 path: 0xff800000.0x00000000; type: 0x80 path: 0xff800000.0x00000000; type: 0x80 path: 0xff800000.0x00000000; type: 0x80 path: 0xff800000.0x00000000; type: 0x80 path: 0xff800000.0x00000000; type: 0x80 path: 0xff800000.0x00000000; type: 0x80 path: 0xff800000.0xff800002; type: 0x90 path: 0xff800000.0x00000000; type: 0x90 path: 0xff800000.0x00000000; type: 0x90 path: 0xff800000.0x00000000; type: 0x90 path: 0xff800000.0x00000000; type: 0x90 path: 0xff800000.0x00000000; type: 0x90 path: 0xff800000.0x00000000; type: 0x90 path: 0xff800000.0x00000000; type: 0x90 TRACE: hid_reset_parser(): resetting the HID parser for USB device 005/002[0]... TRACE: hid_set_output_report(): looking up report ID... TRACE: hid_prepare_parse_path(): preparing search path of depth 2 for parse tree of USB device 005/002[0]... TRACE: hid_prepare_parse_path(): search path prepared for parse tree of USB device 005/002[0]. NOTICE: hid_find_object(): found requested item. TRACE: hid_set_output_report(): sending report ID 0x00 (length: 3) to USB device 005/002[0]... NOTICE: hid_set_output_report(): successfully sent report to USB device 005/002[0]. TRACE: hid_close(): closing USB device 005/002[0]... TRACE: hid_close(): closing handle of USB device 005/002[0]... NOTICE: hid_close(): successfully closed USB device 005/002[0]. TRACE: hid_reset_parser(): resetting the HID parser for USB device 005/002[0]... TRACE: hid_close(): freeing memory allocated for HID parser... TRACE: hid_close(): resetting HIDInterface... NOTICE: hid_cleanup(): successfully deinitialised HID library. And here, the output of the command lsusb -d 0x0483:0x0035 -vvv: Bus 005 Device 002: ID 0483:0035 SGS Thomson Microelectronics Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0483 SGS Thomson Microelectronics idProduct 0x0035 bcdDevice 2.00 iManufacturer 3 STMicroelectronics iProduct 1 ST7 RS232 USB BRIDGE iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 41 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 20mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 3 Human Interface Devices bInterfaceSubClass 0 No Subclass bInterfaceProtocol 0 None iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.10 bCountryCode 33 US bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 29 Report Descriptor: (length is 29) Item(Global): Usage Page, data= [ 0x80 0xff ] 65408 (null) Item(Local ): Usage, data= [ 0x00 ] 0 (null) Item(Main ): Collection, data= [ 0x01 ] 1 Application Item(Global): Report Size, data= [ 0x08 ] 8 Item(Global): Report Count, data= [ 0x08 ] 8 Item(Global): Logical Minimum, data= [ 0x00 ] 0 Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255 Item(Local ): Usage, data= [ 0x01 ] 1 (null) Item(Main ): Feature, data= [ 0x82 ] 130 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Volatile Bitfield Item(Local ): Usage, data= [ 0x01 ] 1 (null) Item(Main ): Input, data= [ 0x82 ] 130 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Volatile Bitfield Item(Local ): Usage, data= [ 0x02 ] 2 (null) Item(Main ): Output, data= [ 0x82 ] 130 Data Variable Absolute No_Wrap Linear Preferred_State No_Null_Position Volatile Bitfield Item(Main ): End Collection, data=none Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 10 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 10 Device Status: 0x0000 (Bus Powered) And here the program: #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; } int main(void) { HIDInterface* hid; hid_return ret; HIDInterfaceMatcher matcher = { 0x0483, 0x0035, 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(6); 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; } //Now, to send 3 bytes: unsigned char const PATHLEN = 2; int const PATH_OUT[2] = { 0xff800000, 0xff800002}; unsigned char const SEND_PACKET_LEN = 3; char const PACKET[3] = "T\r\n"; 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); } // char packet[8]; // ret = hid_get_input_report(hid, PATH_OUT, PATHLEN, packet, 8); // if (ret != HID_RET_SUCCESS) { // fprintf(stderr, "hid_get_input_report failed with return code %d\n", ret); // } 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; } Thanks in advance! -- The best index to a person's character is a) how he treats people who can't do him any good and b) how he treats people who can't fight back _______________________________________________ libhid-discuss mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/libhid-discuss
