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commands: Add 'hwmon' command 

Add 'hwmon' command which allows to display the readings of all
hardware monitoring sensors registered with Barebox.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Andrey Smirnov 2016-05-16 09:45:57 -07:00 committed by Sascha Hauer
parent 914480a542
commit 0462427436
3 changed files with 44 additions and 0 deletions
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8
commands/Kconfig
View File

@ -1807,6 +1807,14 @@ config CMD_HWCLOCK
help
The hwclock command allows to query or set the hardware clock (RTC).
config CMD_HWMON
bool
depends on AIODEV
prompt "hwmon command"
default y
help
The hwmon command allows to query hardware sensors.
config CMD_I2C
bool
depends on I2C

1
commands/Makefile
View File

@ -106,6 +106,7 @@ obj-$(CONFIG_CMD_REGULATOR) += regulator.o
obj-$(CONFIG_CMD_LSPCI) += lspci.o
obj-$(CONFIG_CMD_IMD) += imd.o
obj-$(CONFIG_CMD_HWCLOCK) += hwclock.o
obj-$(CONFIG_CMD_HWMON) += hwmon.o
obj-$(CONFIG_CMD_USBGADGET) += usbgadget.o
obj-$(CONFIG_CMD_FIRMWARELOAD) += firmwareload.o
obj-$(CONFIG_CMD_CMP) += cmp.o

35
commands/hwmon.c Normal file
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@ -0,0 +1,35 @@
#include <common.h>
#include <command.h>
#include <getopt.h>
#include <linux/err.h>
#include <linux/ctype.h>
#include <string.h>
#include <environment.h>
#include <aiodev.h>
static int do_hwmon(int argc, char *argv[])
{
int i;
struct aiodevice *aiodev;
for_each_aiodevice(aiodev) {
for (i = 0; i < aiodev->num_channels; i++) {
struct aiochannel *chan = aiodev->channels[i];
int value;
int ret = aiochannel_get_value(chan, &value);
if (!ret)
printf("%s: %d %s\n", chan->name, value, chan->unit);
else
printf("%s: failed to read (%d)\n", chan->name, ret);
}
}
return 0;
}
BAREBOX_CMD_START(hwmon)
.cmd = do_hwmon,
BAREBOX_CMD_DESC("query hardware sensors (HWMON)")
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
BAREBOX_CMD_END