mirror of
https://github.com/lm-sensors/lm-sensors.git
synced 2026-10-25 12:14:33 +00:00
Philip Edelbrock
e4051fec67
switch. It can switch two devices which each consume 300mA at 5V (or less). This is good for fans, lights, or into relays for heftier stuff. Here's what the usage looks like: [root@penn sensors]# ls ltc1710-i2c-1-58/* ltc1710-i2c-1-58/switch1 ltc1710-i2c-1-58/switch2 [root@penn sensors]# cat ltc1710-i2c-1-58/* 0 0 [root@penn sensors]# echo "1" > ltc1710-i2c-1-58/switch2 (blue LED turned on) [root@penn sensors]# cat ltc1710-i2c-1-58/* 0 1 One problem with the device: It doesn't support reads. It ignores any read transactions, so even detection with a read won't work. This also means that the status of the switches has to be remembered and can't be polled. As simple as this device is, it is one of the few which actually allows the computer to send signals OUT into the world to control something. git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@155 7894878c-1315-0410-8ee3-d5d059ff63e0
51 lines
2.1 KiB
Makefile
51 lines
2.1 KiB
Makefile
# Module.mk - Makefile for a Linux module for reading sensor data.
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# Copyright (c) 1998 Frodo Looijaard <frodol@dds.nl>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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# Note that MODULE_DIR (the directory in which this file resides) is a
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# 'simply expanded variable'. That means that its value is substituted
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# verbatim in the rules, until it is redefined.
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MODULE_DIR := src
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# Regrettably, even 'simply expanded variables' will not put their currently
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# defined value verbatim into the command-list of rules...
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SRCTARGETS := $(MODULE_DIR)/smbus.o $(MODULE_DIR)/piix4.o $(MODULE_DIR)/isa.o \
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$(MODULE_DIR)/lm78.o $(MODULE_DIR)/sensors.o \
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$(MODULE_DIR)/i2c-proc.o $(MODULE_DIR)/lm75.o \
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$(MODULE_DIR)/i2c-proc.o $(MODULE_DIR)/gl518sm.o \
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$(MODULE_DIR)/eeprom.o $(MODULE_DIR)/w83781d.o \
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$(MODULE_DIR)/lm80.o $(MODULE_DIR)/adm1021.o \
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$(MODULE_DIR)/adm9240.o $(MODULE_DIR)/ltc1710.o
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SRCHEADERFILES := $(MODULE_DIR)/sensors.h $(MODULE_DIR)/isa.h \
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$(MODULE_DIR)/smbus.h
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# Include all dependency files
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INCLUDEFILES += $(SRCTARGETS:.o=.d)
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all-src: $(SRCTARGETS)
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all :: all-src
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install-src:
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$(MKDIR) $(MODDIR) $(SYSINCLUDEDIR)
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$(INSTALL) -o root -g root -m 644 $(SRCTARGETS) $(MODDIR)
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$(INSTALL) -o root -g root -m 644 $(SRCHEADERFILES) $(SYSINCLUDEDIR)
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install :: install-src
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clean-src:
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$(RM) $(SRCTARGETS) $(SRCTARGETS:.o=.d)
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clean :: clean-src
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