2 ## This file is part of the libsigrokdecode project.
4 ## Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
6 ## This program is free software; you can redistribute it and/or modify
7 ## it under the terms of the GNU General Public License as published by
8 ## the Free Software Foundation; either version 3 of the License, or
9 ## (at your option) any later version.
11 ## This program is distributed in the hope that it will be useful,
12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ## GNU General Public License for more details.
16 ## You should have received a copy of the GNU General Public License
17 ## along with this program; if not, see <http://www.gnu.org/licenses/>.
21 This is a generic I²C filtering protocol decoder.
23 It takes input from the I²C protocol decoder and removes all traffic
24 except that from/to the specified slave address and/or direction.
26 It then outputs the filtered data again as OUTPUT_PROTO of type/format 'i2c'
27 (up the protocol decoder stack). No annotations are output.
29 The I²C slave address to filter out should be passed in as an option
30 'address', as an integer. A specific read or write operation can be selected
31 with the 'direction' option, which should be 'read', 'write', or 'both'.
33 Both of these are optional; if no options are specified the entire payload
34 of the I²C session will be output.
37 from .pd import Decoder