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#!/usr/bin/env python3
# send one burst of N bytes, then sample BQL inflight until it drains, report drain time
import socket, sys, time
host, size, reps, gap = sys.argv[1], int(sys.argv[2]), int(sys.argv[3]), float(sys.argv[4])
INF = "/sys/class/net/eth0/queues/tx-0/byte_queue_limits/inflight"
def inflight():
    with open(INF) as f: return int(f.read())
s = socket.create_connection((host, 9000))
s.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
time.sleep(0.5)

nbuchwitz

#!/usr/bin/env python3

import argparse
import random
import subprocess
import sys

import can

verbose = False

nbuchwitz

#!/bin/bash

rpi_revision_code() {
        # see https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#new-style-revision-codes
        code=$(grep Revision /proc/cpuinfo  | cut -f 2 -d \: | xargs)

        echo $((16#${code}))
}

rpi_type() {

nbuchwitz

#!/bin/bash

set -e

nm_files="dhcp-eth0.nmconnection dhcp-eth1.nmconnection fallback-link-local-eth0.nmconnection fallback-link-local-eth1.nmconnection 99-revpi.conf"
download_dir=$(mktemp -d)

echo -n "This script will change the network configuration from dhcpcd to NetworkManager. Do you want to proceed? [yN] "
read choice

nbuchwitz

#!/bin/bash

if [[ $(id -u) != 0 ]]; then
    echo "usage: sudo $(basename $0)"
    exit 1
fi

pibridge_static_mac() {
    interface=$1

nbuchwitz

#!/bin/bash

VENDOR_ID=2109
PRODUCT_ID=2817

# find all devices which match our product id
for f in $(grep --include='idProduct' -rlw "$PRODUCT_ID"  /sys/bus/usb/devices/usb* 2>/dev/null); do
        device=$(dirname $f)

        # ensure that vendor id also matches

nbuchwitz

#!/usr/bin/env python3

import revpimodio2

def loop_function(ct):
    # copy 5 input register from modbus to gateway
    rpi.io.Gateway_Output_Word_1.value = rpi.io.Input_Word_1.value
    rpi.io.Gateway_Output_Word_2.value = rpi.io.Input_Word_2.value
    rpi.io.Gateway_Output_Word_3.value = rpi.io.Input_Word_3.value
    rpi.io.Gateway_Output_Word_4.value = rpi.io.Input_Word_4.value

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import os

import revpimodio2

class Application():
    def __init__(self):
        self.rpi = revpimodio2.RevPiModIO(autorefresh=True)
        self.rpi.handlesignalend(self.cleanup_revpi)
        self.rpi.core.x2in.reg_event(self.event_shutdown, edge=revpimodio2.RISING)

nbuchwitz

#!/usr/bin/env python3

import sys
import json
import argparse
import os.path

DEFAULT_CONFIG_NEW = "/var/www/revpi/pictory/projects/_config.rsc"
DEFAULT_CONFIG_OLD = "/var/www/pictory/projects/_config.rsc"

nbuchwitz

import revpimodio2

def ev(name, value):
    # payload is bytes, so we need to know the enconding (eg. ascii, utf-8, etc...)
    print(name, value.decode('ascii'))

rpi = revpimodio2.RevPiModIO(autorefresh=True, monitoring=True)
rpi.handlesignalend()

# define IO: change length of string in the frm argument