Initial Implementation

README.md

@@ -2,3 +2,54 @@ node-pcsclite
 =============
 
 Bindings over pcsclite to access Smart Cards
+
+Example
+
+    var pcsc = require('pcsclite');
+
+    var pcsc = pcsc();
+    /* Check for new card reader detection */
+    pcsc.on('reader', function(reader) {
+        console.log('New reader detected', reader.name);
+
+        /* Check for reader status changes such a new card insertion */
+        reader.on('status', function(status) {
+            console.log('Status(', this.name, '):', status);
+            /* check what has changed */
+            var changes = this.status ^ status;
+            if (changes) {
+                if ((changes & this.SCARD_STATE_EMPTY) && (status & this.SCARD_STATE_EMPTY)) {
+                    console.log("card removed");/* card removed */
+                } else if ((changes & this.SCARD_STATE_PRESENT) && (status & this.SCARD_STATE_PRESENT)) {
+                    console.log("card inserted");/* card inserted */
+                }
+            }
+        });
+
+        /* You can connect to a smart card */
+        reader.connect(function(err, protocol) {
+            if (err) {
+                console.log(err);
+            } else {
+                console.log('Protocol(', this.name, '):', protocol);
+                /* And transmit data */
+                reader.transmit(new Buffer([0x00, 0xB0, 0x00, 0x00, 0x20]), 40, 1, function(err, data) {
+                    if (err) console.log(err);
+                    else console.log('Data received', data);
+                })
+            }
+        });
+
+        reader.on('end', function() {
+            console.log('Reader',  this.name, 'removed');
+        });
+
+        reader.on('error', function(err) {
+            console.log('Error(', this.name, '):', err.message);
+        });
+    });
+
+    pcsc.on('error', function(err) {
+        console.log('PCSC error', err.message);
+    });
+