Hi all,
HEre it is my problem.
I would like to be able to read data from a USB device.
In this case, the usb device is a suunto watch (t6c) that stores heartrate,
altitude, speed, cadence.... and X data when exercising.
I have been looking around and I found this CPAN modules: Device::USB that
gives control over USB devices using the C library libusb.

Using a script included in the module, I got this information from the
device: (it is just a print from Data::Dumper).

  bless( {
    'location' => 0,
    'dirname' => '005',
    'devices' => [
      bless( {
        'descriptor' => {
          'bcdUSB' => '2.00',
          'iProduct' => 2,
          'bDeviceSubClass' => 0,
          'bDeviceClass' => 0,
          'idProduct' => 63104,
          'bcdDevice' => '4.00',
          'iManufacturer' => 1,
          'bMaxPacketSize0' => 8,
          'iSerialNumber' => 3,
          'bNumConfigurations' => 1,
          'idVendor' => 1027,
          'bDescriptorType' => 1,
          'bDeviceProtocol' => 0
        },
        'filename' => '026',
        'config' => [
          bless( {
            'MaxPower' => 300,
            'bmAttributes' => 160,
            'bNumInterfaces' => 1,
            'interfaces' => [
              [
                bless( {
                  'bInterfaceSubClass' => 255,
                  'bNumEndpoints' => 2,
                  'endpoints' => [
                    bless( {
                      'bmAttributes' => 2,
                      'wMaxPacketSize' => 64,
                      'bSynchAddress' => 0,
                      'bRefresh' => 0,
                      'bEndpointAddress' => 129,
                      'bInterval' => 0,
                      'bDescriptorType' => 5
                    }, 'Device::USB::DevEndpoint' ),
                    bless( {
                      'bmAttributes' => 2,
                      'wMaxPacketSize' => 64,
                      'bSynchAddress' => 0,
                      'bRefresh' => 0,
                      'bEndpointAddress' => 2,
                      'bInterval' => 0,
                      'bDescriptorType' => 5
                    }, 'Device::USB::DevEndpoint' )
                  ],
                  'bInterfaceProtocol' => 255,
                  'iInterface' => 2,
                  'bInterfaceNumber' => 0,
                  'bDescriptorType' => 4,
                  'bAlternateSetting' => 0,
                  'bInterfaceClass' => 255
                }, 'Device::USB::DevInterface' )
              ]
            ],
            'iConfiguration' => 0,
            'wTotalLength' => 32,
            'bConfigurationValue' => 1,
            'bDescriptorType' => 2
          }, 'Device::USB::DevConfig' )
        ],
        'device' => 9370480
      }, 'Device::USB::Device' ),
[download]

So, I identified the vendor and product ID and I got information from the watch using this script:

#!/usr/bin/perl

use strict;
use warnings;
use Device::USB;
my $VENDOR = 1027;
my $PRODUCT = 63104;
my $usb = Device::USB->new();
my $dev = $usb->find_device( $VENDOR, $PRODUCT );

printf "Device: %04X:%04X\n", $dev->idVendor(), $dev->idProduct();
$dev->open();
print "Manufactured by ", $dev->manufacturer(), "\n",
          " Product: ", $dev->product(), "\n";
exit;
[download]

OUTPUT:

Device: 0403:F680
Manufactured by Suunto
 Product: Suunto Sports Instrument
[download]

Form here, I don't know how to interact with it to get the data stored in the device. So, any help to point me in the right direction would be fantastic.
(I have never used perl for opening/interacting with devices.)

Thanks in advance.
F

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