28 lines
621 B
Bash
28 lines
621 B
Bash
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#!/bin/bash
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init_devnum() {
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found=0
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for devnum in 0 1; do
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devname=`cat /sys/bus/i2c/devices/i2c-${devnum}/name`
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# iSMT adapter can be at dff5c000
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echo $devname
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if [[ "$devname" == 'SMBus iSMT adapter at '* ]] ; then
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found=1
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break
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fi
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done
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[ $found -eq 0 ] && echo "cannot find iSMT" && exit 0
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}
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init_devnum
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while [ 1 ]
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do
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if [ ! -f /sys/class/i2c-adapter/i2c-${devnum}/${devnum}-0071/idle_state ]; then
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sleep 1
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continue
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fi
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echo -2 > /sys/class/i2c-adapter/i2c-${devnum}/${devnum}-0071/idle_state
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break
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done
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