/// <summary>
/// Mac-specific implementation.
/// </summary>
static partial void UpdateAvailablePorts()
{
var ports = Enumerable.Empty <string>();
switch (DeviceManagementInterfaceKindHelpers.GetKind())
{
case DeviceManagementInterfaceKind.IOKit:
// Need to set up an Autorelease pool here since we may be doing
// this on a worker thread, and it makes some IOKit calls. Specifically,
// some NSObject instances may be created, and thus the need for the pool.
using (var pool = new NSAutoreleasePool())
{
using (var masterPort = new IOMachPort())
{
using (var iterator = masterPort.GetRS232SerialServicesIterator())
{
DebugOutput("Got iterator of: " + iterator);
ports = iterator.EnumerateSerialPorts(IOKitHelpers.BluetoothPortsExclusionFilter);
}
}
}
break;
case DeviceManagementInterfaceKind.Dev:
// NOTE: The MONO serial implementation lists only /dev/tty* entries. So we filter by that, then substitute since we want cu instead of tty.
ports = System.IO.Ports.SerialPort.GetPortNames().Where(p => p.StartsWith("/dev/tty.") && !IOKitHelpers.BluetoothPortsExclusionFilter(p)).Select(p => System.Text.RegularExpressions.Regex.Replace(p, "^/dev/tty", "/dev/cu"));
break;
}
_availablePorts = ports.ToArray();
}
/// <summary>
/// Gets the USB serial numbers of connected LTO Flash! devices.
/// </summary>
/// <returns>The USB serial numbers of LTO Flash! devices currently connected to the system.</returns>
/// <remarks>This technique uses the IOKit to enumerate USB devices connected to the system that have the
/// vendor and product IDs matching what the LTO Flash! hardware uses. The matches are then refined further
/// by examining the user-visible vendor and product strings, which are programmed into the chip during
/// LTO Flash! device manufacture. These disambiguate actual LTO Flash! devices from other devices connected
/// to the system that may be using the same USB to Serial chipset from FTDI.
/// NOTE: If LTO Flash! hardware is ever revised to use a different USB-to-serial chipset, or driver
/// behavior changes w.r.t. port naming, etc. this will need to be revised.</remarks>
private static IEnumerable <string> GetConnectedDeviceSerialNumbers()
{
var connectedDevices = new List <string>();
using (var masterPort = new IOMachPort())
{
using (var iterator = masterPort.GetUSBServicesIterator(Device.UsbVendorId, Device.UsbProductId))
{
if ((iterator != null) && iterator.IsValid)
{
var validEntry = true;
do
{
using (var deviceEntry = iterator.Next <IORegistryEntry>())
{
validEntry = deviceEntry != null;
if (validEntry)
{
var vendor = deviceEntry.GetProperty <NSString>(IOKitHelpers.KUSBVendorString);
var product = deviceEntry.GetProperty <NSString>(IOKitHelpers.KUSBProductString);
if ((vendor == Device.UsbVendorName) && (product == Device.UsbProductName))
{
// The serial port for the FTDI chip are named based off the USB serial number.
var deviceSerial = deviceEntry.GetProperty <NSString>(IOKitHelpers.KUSBSerialNumberString);
if (!string.IsNullOrEmpty(deviceSerial))
{
connectedDevices.Add(deviceSerial);
}
}
}
}
}while (validEntry);
}
}
}
return(connectedDevices);
}
