The following is something like a mixture of Linux IIO and hwmon support
for the poor. I called it iodevice, but better names are appreciated.
A iodevice has multiple channels, each providing a value like for
example a temperature or a voltage. For each iodevice we provide device
parameters to access the values from the commandline. The C API for a
consumer consists of iochannel_get() to get a iochannel, and
iochannel_get_value() to actually read a value.
As drivers we currently have a LM75 temperature driver and a MCP342x ADC
driver. Also there is a PT100 driver which itself is a consumer of
another iodevice, a MCP342x in my case. This is more meant as an example
since the voltage to temperature conversion function is board specific.
Sascha
----------------------------------------------------------------
Sascha Hauer (4):
misc: Add iodevice support
misc: Add basic LM75 temperature driver
misc: Add Microchip MCP342x support
misc: Add PT100 temperature sensor support
drivers/misc/Kconfig | 18 ++++
drivers/misc/Makefile | 5 +
drivers/misc/iodevice.c | 109 ++++++++++++++++++++
drivers/misc/lm75.c | 262 ++++++++++++++++++++++++++++++++++++++++++++++++
drivers/misc/mcp342x.c | 259 +++++++++++++++++++++++++++++++++++++++++++++++
drivers/misc/pt100.c | 145 +++++++++++++++++++++++++++
include/iodevice.h | 33 ++++++
7 files changed, 831 insertions(+)
create mode 100644 drivers/misc/iodevice.c
create mode 100644 drivers/misc/lm75.c
create mode 100644 drivers/misc/mcp342x.c
create mode 100644 drivers/misc/pt100.c
create mode 100644 include/iodevice.h
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