About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

Documentation / hwmon / ucd9200

Custom Search

Based on kernel version 3.13. Page generated on 2014-01-20 22:03 EST.

1	Kernel driver ucd9200
2	=====================
4	Supported chips:
5	  * TI UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and UCD9248
6	    Prefixes: 'ucd9220', 'ucd9222', 'ucd9224', 'ucd9240', 'ucd9244', 'ucd9246',
7		'ucd9248'
8	    Addresses scanned: -
9	    Datasheets:
10		http://focus.ti.com/lit/ds/symlink/ucd9220.pdf
11		http://focus.ti.com/lit/ds/symlink/ucd9222.pdf
12		http://focus.ti.com/lit/ds/symlink/ucd9224.pdf
13		http://focus.ti.com/lit/ds/symlink/ucd9240.pdf
14		http://focus.ti.com/lit/ds/symlink/ucd9244.pdf
15		http://focus.ti.com/lit/ds/symlink/ucd9246.pdf
16		http://focus.ti.com/lit/ds/symlink/ucd9248.pdf
18	Author: Guenter Roeck <linux@roeck-us.net>
21	Description
22	-----------
24	[From datasheets] UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and
25	UCD9248 are multi-rail, multi-phase synchronous buck digital PWM controllers
26	designed for non-isolated DC/DC power applications. The devices integrate
27	dedicated circuitry for DC/DC loop management with flash memory and a serial
28	interface to support configuration, monitoring and management.
30	This driver is a client driver to the core PMBus driver. Please see
31	Documentation/hwmon/pmbus for details on PMBus client drivers.
34	Usage Notes
35	-----------
37	This driver does not auto-detect devices. You will have to instantiate the
38	devices explicitly. Please see Documentation/i2c/instantiating-devices for
39	details.
42	Platform data support
43	---------------------
45	The driver supports standard PMBus driver platform data. Please see
46	Documentation/hwmon/pmbus for details.
49	Sysfs entries
50	-------------
52	The following attributes are supported. Limits are read-write; all other
53	attributes are read-only.
55	in1_label		"vin".
56	in1_input		Measured voltage. From READ_VIN register.
57	in1_min			Minimum Voltage. From VIN_UV_WARN_LIMIT register.
58	in1_max			Maximum voltage. From VIN_OV_WARN_LIMIT register.
59	in1_lcrit		Critical minimum Voltage. VIN_UV_FAULT_LIMIT register.
60	in1_crit		Critical maximum voltage. From VIN_OV_FAULT_LIMIT register.
61	in1_min_alarm		Voltage low alarm. From VIN_UV_WARNING status.
62	in1_max_alarm		Voltage high alarm. From VIN_OV_WARNING status.
63	in1_lcrit_alarm		Voltage critical low alarm. From VIN_UV_FAULT status.
64	in1_crit_alarm		Voltage critical high alarm. From VIN_OV_FAULT status.
66	in[2-5]_label		"vout[1-4]".
67	in[2-5]_input		Measured voltage. From READ_VOUT register.
68	in[2-5]_min		Minimum Voltage. From VOUT_UV_WARN_LIMIT register.
69	in[2-5]_max		Maximum voltage. From VOUT_OV_WARN_LIMIT register.
70	in[2-5]_lcrit		Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register.
71	in[2-5]_crit		Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
72	in[2-5]_min_alarm	Voltage low alarm. From VOLTAGE_UV_WARNING status.
73	in[2-5]_max_alarm	Voltage high alarm. From VOLTAGE_OV_WARNING status.
74	in[2-5]_lcrit_alarm	Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
75	in[2-5]_crit_alarm	Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
77	curr1_label		"iin".
78	curr1_input		Measured current. From READ_IIN register.
80	curr[2-5]_label		"iout[1-4]".
81	curr[2-5]_input		Measured current. From READ_IOUT register.
82	curr[2-5]_max		Maximum current. From IOUT_OC_WARN_LIMIT register.
83	curr[2-5]_lcrit		Critical minimum output current. From IOUT_UC_FAULT_LIMIT
84				register.
85	curr[2-5]_crit		Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
86	curr[2-5]_max_alarm	Current high alarm. From IOUT_OC_WARNING status.
87	curr[2-5]_crit_alarm	Current critical high alarm. From IOUT_OC_FAULT status.
89	power1_input		Measured input power. From READ_PIN register.
90	power1_label		"pin"
92	power[2-5]_input	Measured output power. From READ_POUT register.
93	power[2-5]_label	"pout[1-4]"
95				The number of output voltage, current, and power
96				attribute sets is determined by the number of enabled
97				rails. See chip datasheets for details.
99	temp[1-5]_input		Measured temperatures. From READ_TEMPERATURE_1 and
100			        READ_TEMPERATURE_2 registers.
101				temp1 is the chip internal temperature. temp[2-5] are
102				rail temperatures.  temp[2-5] attributes are only
103				created for enabled rails. See chip datasheets for
104				details.
105	temp[1-5]_max		Maximum temperature. From OT_WARN_LIMIT register.
106	temp[1-5]_crit		Critical high temperature. From OT_FAULT_LIMIT register.
107	temp[1-5]_max_alarm	Temperature high alarm.
108	temp[1-5]_crit_alarm	Temperature critical high alarm.
110	fan1_input		Fan RPM. ucd9240 only.
111	fan1_alarm		Fan alarm. ucd9240 only.
112	fan1_fault		Fan fault. ucd9240 only.
Hide Line Numbers
About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

Information is copyright its respective author. All material is available from the Linux Kernel Source distributed under a GPL License. This page is provided as a free service by mjmwired.net.