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1 ???using System; |
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2 using System.IO; |
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3 |
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4 namespace UCIS.USBLib.Communication { |
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5 public class UsbPipeStream : Stream { |
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6 public IUsbInterface Device { get; private set; } |
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7 public Byte Endpoint { get; private set; } |
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8 public Boolean InterruptEndpoint { get; private set; } |
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9 |
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10 public UsbPipeStream(IUsbInterface device, Byte endpoint, Boolean interrupt) { |
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11 this.Device = device; |
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12 this.Endpoint = endpoint; |
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13 this.InterruptEndpoint = interrupt; |
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14 } |
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15 |
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16 public override bool CanRead { |
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17 get { return (Endpoint & 0x80) != 0; } |
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18 } |
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19 |
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20 public override bool CanSeek { |
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21 get { return false; } |
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22 } |
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23 |
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24 public override bool CanWrite { |
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25 get { return (Endpoint & 0x80) == 0; } |
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26 } |
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27 |
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28 public override void Flush() { |
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29 } |
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30 |
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31 public override long Length { get { return 0; } } |
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32 |
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33 public override long Position { |
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34 get { return 0; } |
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35 set { throw new NotImplementedException(); } |
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36 } |
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37 |
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38 public override int Read(byte[] buffer, int offset, int count) { |
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39 if (InterruptEndpoint) { |
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40 return Device.InterruptRead(Endpoint, buffer, offset, count); |
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41 } else { |
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42 return Device.BulkRead(Endpoint, buffer, offset, count); |
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43 } |
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44 } |
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45 |
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46 public override long Seek(long offset, SeekOrigin origin) { |
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47 throw new NotImplementedException(); |
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48 } |
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49 |
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50 public override void SetLength(long value) { |
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51 throw new NotImplementedException(); |
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52 } |
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53 |
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54 public override void Write(byte[] buffer, int offset, int count) { |
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55 int written; |
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56 if (InterruptEndpoint) { |
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57 written = Device.InterruptWrite(Endpoint, buffer, offset, count); |
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58 } else { |
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59 written = Device.BulkWrite(Endpoint, buffer, offset, count); |
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60 } |
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61 if (written != count) throw new EndOfStreamException("Could not write all data"); |
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62 } |
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63 } |
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64 } |
