Re: [Libusb-win32-devel] ioctl mouse access with LibUsb ?

[Stephan M. <ste...@we...>]

You can send output reports to a HID device by using 
usb_control_msg(). The format of an output report is
described in the HID spec which is available here:
http://www.usb.org/developers/hidpage

Stephan
 

> Hello,
> i am new with this libUSB and from
> http://www.kdedevelopers.org/node/2029 i have the following code
> snippet, from a linux program, to call some special function inside the
> Logitech MX610 mouse:
> ==================================
> struct hiddev_usage_ref usage_ref;
> struct hiddev_report_info rep_info;
> 
> unsigned char command[6]={0x01, 0x80, 0x52, 0x06, 0x00, 0x00 };
> 
> for (alv = 0; alv < 6; ++alv)
> {
>  usage_ref.report_type = HID_REPORT_TYPE_OUTPUT;
>  usage_ref.report_id = 0x10;
>  usage_ref.field_index = 0;
>  usage_ref.usage_code = 0xff000001;
>  usage_ref.usage_index = alv;
>  usage_ref.value = (unsigned char) command[alv];
>  int ret = ioctl(fd, HIDIOCSUSAGE, &usage_ref);
>  if ( ret < 0 )
>   printf("Error (SUSAGE) while talking to the Mouse: %i\n", ret);
>  usage_ref.usage_index++;
> }
> rep_info.report_type = HID_REPORT_TYPE_OUTPUT;
> rep_info.report_id = 0x10;
> rep_info.num_fields = 1;
> if (ioctl(fd, HIDIOCSREPORT, &rep_info) < 0) {
>  printf("Error (SREPORT) while talking to the Mouse\n");
>  return -1;
> }
> =======================================
> I am not sure how i can make this ioctl calls via some libUsb function,
> is this possible? How?
> 
> regards
> Peter
> 
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