74 lines
2.4 KiB
Bash
Executable File
74 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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#===============================================================================
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#
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# Copyright (C) 2022 by Digi International Inc.
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# All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 as published by
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# the Free Software Foundation.
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#
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#
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# Description:
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# Script to install the driver of the usb serial console.
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#===============================================================================
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# Exit on any error
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set -e
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# Unload the selected module
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unload_module()
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{
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if grep -qs "^${1}" /proc/modules; then
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printf "Module ${1} loaded, unloading the module.\n"
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rmmod "${1}"
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fi
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}
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# Create rule for the Cypress USB driver
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create_rule()
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{
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RULE_PATH=/etc/udev/rules.d/90-cyusb.rules
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if [ ! -f "$RULE_PATH" ]; then
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printf "Rule \"$RULE_PATH\" doesn't exist, creating a new one.\n"
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printf "# Cypress USB driver for FX2 and FX3 (C) Cypress Semiconductor Corporation / ATR-LABS" | tee ${RULE_PATH} > /dev/null
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printf "# Rules written by V. Radhakrishnan ( rk@atr-labs.com )" | tee -a ${RULE_PATH} > /dev/null
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printf "# Cypress USB vendor ID = 0x04b4" | tee -a ${RULE_PATH} > /dev/null
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printf "KERNEL==\"*\", SUBSYSTEM==\"usb\", ENV{DEVTYPE}==\"usb_device\", ACTION==\"add\", ATTR{idVendor}==\"04b4\", MODE=\"666\"" | tee -a ${RULE_PATH} > /dev/null
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printf "KERNEL==\"*\", SUBSYSTEM==\"usb\", ENV{DEVTYPE}==\"usb_device\", ACTION==\"remove\", TAG==\"cyusb_dev\"" | tee -a ${RULE_PATH} > /dev/null
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fi
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}
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# Blacklist the selected module
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blacklist()
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{
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BLACKLISTH_PATH=/etc/modprobe.d/blacklist.conf
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if [ ! -f "$BLACKLISTH_PATH" ]; then
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printf "File \"$BLACKLISTH_PATH\" doesn't exist, creating a new one.\n"
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printf "blacklist ${1}" | tee ${BLACKLISTH_PATH} > /dev/null
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else
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printf "File \"$BLACKLISTH_PATH\" exists, checking if the rule is already there.\n"
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if grep -Fq "${1}" $BLACKLISTH_PATH; then
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printf "Rule for ${1} found.\n"
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else
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printf "Rule for ${1} not found. Adding ${1} to the blacklist.\n"
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printf "\nblacklist ${1}" | tee -a ${BLACKLISTH_PATH} > /dev/null
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fi
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fi
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}
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if [ "$(id -u)" != 0 ]; then
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printf "This script should be run with root privileges.\n"
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exit 1
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fi
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printf "Installing Cypress USB driver.\n"
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create_rule
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blacklist "cytherm"
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unload_module "cytherm"
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unload_module "cdc_acm"
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printf "Please plug/unplug your usb device to be recognized.\n"
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