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Diffstat (limited to 'decoders/usb_protocol/__init__.py')
| -rw-r--r-- | decoders/usb_protocol/__init__.py | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/decoders/usb_protocol/__init__.py b/decoders/usb_protocol/__init__.py deleted file mode 100644 index 5fa66f6..0000000 --- a/decoders/usb_protocol/__init__.py +++ /dev/null @@ -1,47 +0,0 @@ -## -## This file is part of the libsigrokdecode project. -## -## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de> -## -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; either version 2 of the License, or -## (at your option) any later version. -## -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. -## -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -## - -''' -USB (low-speed and full-speed) protocol decoder. - -Protocol layer (USB spec, chapter 8): - -Bit/byte ordering: Bits are sent onto the bus LSB-first. Multibyte fields -are transmitted in little-endian order (i.e., LSB to MSB). - -SYNC field: All packets begin with a SYNC field (8 bits). - -Packet field format: Packets start with an SOP (Start Of Packet) delimiter -that is part of the SYNC field, and end with an EOP (End Of Packet). - -PID: A PID (packet identifier) follows the SYNC field of every packet. A PID -consists of a 4-bit packet type field, and a 4 bit check field. -The check field is the one's complement of the packet type field. - -Protocol output format: -TODO - -Details: -https://en.wikipedia.org/wiki/USB -http://www.usb.org/developers/docs/ -''' - -from .pd import * - |