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HidDevice.cpp
author sl
Tue, 08 Jul 2014 18:59:41 +0200
changeset 4 36894fc4dad6
child 7 8bac7aac665c
permissions -rw-r--r--
Adding APIs for string and requests. 
     1 //

     2 //

     3 //

     4 

     5 #include "HidDevice.h"

     6 

     7 

     8 

     9 //

    10 // class HidDevice

    11 //

    12 

    13 HidDevice::HidDevice():iHidDevice(NULL)

    14     {

    15     Close();

    16     }

    17 

    18 /**

    19 */

    20 int HidDevice::Open(const char* aPath)

    21 	{

    22 	Close();

    23 

    24 	iHidDevice =  hid_open_path(aPath);

    25 

    26 	if (!iHidDevice)

    27 		{

    28 		//Fail to connect our device

    29 		return 0;

    30 		}

    31 

    32     FetchStrings();

    33 

    34 	return 1;

    35 	}

    36 

    37 /**

    38 See hidapi documentation.

    39 */

    40 int HidDevice::Open(unsigned short aVendorId, unsigned short aProductId, const wchar_t* aSerialNumber)

    41 	{

    42     Close();

    43 

    44 	iHidDevice = hid_open(aVendorId, aProductId, aSerialNumber);

    45 

    46 	if (!iHidDevice)

    47 		{

    48 		//Fail to connect our device

    49 		return 0;

    50 		}

    51 

    52     FetchStrings();

    53 

    54 	return 1;

    55 	}

    56 

    57 /**

    58 */

    59 void HidDevice::Close()

    60 	{

    61 	hid_close(iHidDevice);

    62 	iHidDevice=NULL;

    63     //

    64     memset(iVendor,0,sizeof(iVendor));

    65     memset(iProduct,0,sizeof(iProduct));

    66     memset(iSerialNumber,0,sizeof(iSerialNumber));

    67 	}

    68 

    69 /**

    70 */

    71 bool HidDevice::IsOpen()

    72     {

    73     return iHidDevice!=NULL;

    74     }

    75 

    76 

    77 /**

    78 */

    79 const wchar_t* HidDevice::Error()

    80 	{

    81 	return hid_error(iHidDevice);

    82 	}

    83 

    84 /**

    85 */

    86 int HidDevice::SetNonBlocking(int aNonBlocking)

    87 	{

    88 	//Success we are now connected to our HID device

    89 	//Set read operation as non blocking

    90 	return hid_set_nonblocking(iHidDevice, aNonBlocking);

    91 	}

    92 

    93 /**

    94 */

    95 wchar_t* HidDevice::Vendor()

    96     {

    97     return iVendor;

    98     }

    99 

   100 /**

   101 */

   102 wchar_t* HidDevice::Product()

   103     {

   104     return iProduct;

   105     }

   106 

   107 /**

   108 */

   109 wchar_t* HidDevice::SerialNumber()

   110     {

   111     return iSerialNumber;

   112     }

   113 

   114 /**

   115 

   116 */

   117 void HidDevice::FetchStrings()

   118     {

   119     hid_get_manufacturer_string(iHidDevice,iVendor,sizeof(iVendor));

   120     hid_get_product_string(iHidDevice,iProduct,sizeof(iProduct));

   121     hid_get_serial_number_string(iHidDevice,iSerialNumber,sizeof(iSerialNumber));

   122     }
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