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stats: alternatively read battery and temp from aux/acpi

--- a/sys/src/cmd/stats.c

+++ b/sys/src/cmd/stats.c

@@ -598,6 +598,10 @@

 	snprint(buf, sizeof buf, "%s/mnt/apm/battery", mpt);

 	m->batteryfd = open(buf, OREAD);

+	if(m->batteryfd < 0){

+		snprint(buf, sizeof buf, "%s/mnt/acpi/battery", mpt);

+		m->batteryfd = open(buf, OREAD);

+	}

 	m->bitsybatfd = -1;

 	if(m->batteryfd >= 0){

 		if(loadbuf(m, &m->batteryfd) && readnums(m, nelem(m->batterystats), a, 0))

@@ -610,6 +614,10 @@

 	}

 	snprint(buf, sizeof buf, "%s/dev/cputemp", mpt);

 	m->tempfd = open(buf, OREAD);

+	if(m->tempfd < 0){

+		snprint(buf, sizeof buf, "%s/mnt/acpi/cputemp", mpt);

+		m->tempfd = open(buf, OREAD);

+	}

 	if(loadbuf(m, &m->tempfd))

 		for(n=0; n < nelem(m->temp) && readnums(m, 2, a, 0); n++)

 			 m->temp[n] = a[0];