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Update hub_demo.ino

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Added functionality to print device string descriptors (I.E. Manufacturer, Product Description and Serial Number.
This commit is contained in:
stumpja 2016-02-25 14:44:55 -05:00 committed by Kristian Sloth Lauszus
parent 3ca6ddd8d4
commit fadf774235
1 changed files with 79 additions and 1 deletions
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80
examples/hub_demo/hub_demo.ino
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@ -19,7 +19,7 @@ void PrintAllAddresses(UsbDevice *pdev)
{
UsbDeviceAddress adr;
adr.devAddress = pdev->address.devAddress;
Serial.print("\r\nAddr:");
Serial.print("Addr:");
Serial.print(adr.devAddress, HEX);
Serial.print("(");
Serial.print(adr.bmHub, HEX);
@ -92,6 +92,7 @@ void PrintAllDescriptors(UsbDevice *pdev)
Serial.println("\r\n");
print_hex(pdev->address.devAddress, 8);
Serial.println("\r\n--");
getallstrdescr(pdev->address.devAddress);
PrintDescriptors( pdev->address.devAddress );
}
@ -238,6 +239,83 @@ byte getconfdescr( byte addr, byte conf )
}//while( buf_ptr <=...
return ( rcode );
}
// function to get all string descriptors
byte getallstrdescr(uint8_t addr)
{
byte rcode;
Usb.Task();
if( Usb.getUsbTaskState() >= 0x80 ) { // state configuring or higher
USB_DEVICE_DESCRIPTOR buf;
rcode = Usb.getDevDescr( addr, 0, 0x12, ( uint8_t *)&buf );
if ( rcode ) {
return ( rcode );
}
Serial.println("String Descriptors:");
if( buf.iManufacturer > 0 ) {
Serial.print("Manufacturer:\t\t");
rcode = getstrdescr( addr, buf.iManufacturer ); // get manufacturer string
if( rcode ) {
Serial.println( rcode, HEX );
}
Serial.print("\r\n");
}
if( buf.iProduct > 0 ) {
Serial.print("Product:\t\t");
rcode = getstrdescr( addr, buf.iProduct ); // get product string
if( rcode ) {
Serial.println( rcode, HEX );
}
Serial.print("\r\n");
}
if( buf.iSerialNumber > 0 ) {
Serial.print("Serial:\t\t\t");
rcode = getstrdescr( addr, buf.iSerialNumber ); // get serial string
if( rcode ) {
Serial.println( rcode, HEX );
}
Serial.print("\r\n");
}
}
}
// function to get single string description
unsigned int getstrdescr( unsigned int addr, byte idx )
{
byte buf[ 66 ];
unsigned int rcode;
byte length;
byte i;
unsigned short langid;
rcode = Usb.getStrDescr( addr, 0, 1, 0, 0, buf ); //get language table length
if( rcode ) {
Serial.println("Error retrieving LangID table length");
return( rcode );
}
length = buf[ 0 ]; //length is the first byte
rcode = Usb.getStrDescr( addr, 0, length, 0, 0, buf ); //get language table
if( rcode ) {
Serial.print("Error retrieving LangID table ");
return( rcode );
}
langid = word(buf[3], buf[2]);
rcode = Usb.getStrDescr( addr, 0, 1, idx, langid, buf );
if( rcode ) {
Serial.print("Error retrieving string length ");
return( rcode );
}
length = buf[ 0 ];
rcode = Usb.getStrDescr( addr, 0, length, idx, langid, buf );
if( rcode ) {
Serial.print("Error retrieving string ");
return( rcode );
}
for( i = 2; i < length; i+=2 ) {
Serial.print((char) buf[i]);
}
return( rcode );
}
/* prints hex numbers with leading zeroes */
// copyright, Peter H Anderson, Baltimore, MD, Nov, '07
// source: http://www.phanderson.com/arduino/arduino_display.html