initial import

.gitignore

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+/*.egg-info/
+/build/
+/dist/

MANIFEST.in

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+exclude decode_json_pcapng.py
+exclude VTOF9852.JPG
+include tox.ini

README.md

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+# Plover OFT EVA
+
+Add support for the OFT EVA keyboard: http://www.oft-coop.com/EVA/.
+
+## Release history
+
+### 0.2.6
+
+* first public version

decode_json_pcapng.py

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+#!/usr/bin/env python
+
+from dataclasses import dataclass
+import binascii
+import json
+import sys
+
+
+@dataclass
+class Packet:
+    timestamp: float
+    delta: float
+    kind: str
+    data: bytes
+    comment: str
+
+
+def merge_packets(packet_list):
+    packet = None
+    for new_packet in packet_list:
+        if (packet is None or
+            new_packet.kind != packet.kind or
+            new_packet.delta > 0.015):
+            if packet is not None:
+                yield packet
+            packet = new_packet
+        else:
+            if new_packet.comment:
+                if packet.comment:
+                    packet.comment += '\n'
+                packet.comment += new_packet.comment
+            packet.data += new_packet.data
+    if packet is not None:
+        yield packet
+
+
+def main():
+    with open(sys.argv[1], 'rb') as fp:
+        capture = json.load(fp)
+    # Filter out interesting data.
+    packet_list = []
+    prev_timestamp = 0
+    for packet in capture:
+        layers = packet['_source']['layers']
+        frame = layers['frame']
+        usb = layers['usb']
+        timestamp = float(frame['frame.time_relative'])
+        delta = timestamp - prev_timestamp
+        comment = layers.get('pkt_comment')
+        if comment is not None:
+            comment = comment['frame.comment']
+        data = layers.get('usb.capdata')
+        if data is None:
+            continue
+        src = usb['usb.src']
+        dst = usb['usb.dst']
+        if dst == 'host':
+            kind = '%s => host' % src
+        elif src == 'host':
+            kind = 'host => %s' % dst
+        else:
+            raise ValueError(src, dst)
+        data = binascii.unhexlify(data.replace(':', ''))
+        packet = Packet(timestamp, delta, kind, data, comment or '')
+        packet_list.append(packet)
+        prev_timestamp = timestamp
+    # Regurgitate, merging time adjacent packets.
+    for packet in merge_packets(packet_list):
+        print('% 8.3f [% +7.3f]  %s  %3u  %s  %s  %r' % (
+            packet.timestamp, packet.delta,
+            packet.kind,
+            len(packet.data),
+            packet.data.hex(':'),
+            ':'.join("{0:08b}".format(b) for b in packet.data),
+            packet.data,
+        ))
+        if packet.comment:
+            print('', '^' * 8, packet.comment)
+
+
+if __name__ == '__main__':
+    main()