'\" t
.\"     Title: asem
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: 03/02/2016
.\"    Manual: NUT Manual
.\"    Source: Network UPS Tools 2.7.3.1
.\"  Language: English
.\"
.TH "ASEM" "8" "03/02/2016" "Network UPS Tools 2\&.7\&.3\&." "NUT Manual"
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.SH "NAME"
asem \- driver for UPS in ASEM PB1300
.SH "NOTE"
.sp
This man page only documents the hardware\-specific features of the \fBasem\fR driver\&. For information about the core driver, see \fBnutupsdrv\fR(8)\&.
.SH "SUPPORTED HARDWARE"
.sp
The \fBasem\fR driver supports the UPS in ASEM PB1300 embedded PCs\&. Likely other I2C devices from the same manufacturer will work too, since this is a "custom" charger\&.
.sp
Seems that there are two versions of the charger\&. Older one is based on Max1667, newer one is a custom solution\&. Both are on I2C address 0x09\&. To be compatible with both versions, the driver just reads bit 15 of address 0x13 which yields online/on battery status\&. Battery monitor is a BQ2060 at address 0x0B\&.
.SH "EXTRA ARGUMENTS"
.sp
The required parameter for this driver is the I2C bus name:
.PP
\fBport\fR=\fIdev\-node\fR
.RS 4
On the Asem PB1300, this should be
/dev/i2c\-7
for the i801 SMBUS adapter\&.
.RE
.sp
This driver also supports the following optional settings:
.PP
\fBlb\fR=\fInum\fR
.RS 4
Set the low battery threshold to
\fInum\fR
volts\&.
.RE
.PP
\fBhb\fR=\fInum\fR
.RS 4
Set the high battery threshold to
\fInum\fR
volts\&.
.RE
.SH "INSTALLATION"
.sp
This driver is specific to the Linux I2C API, and requires the lm_sensors libi2c\-dev or its equivalent to compile\&.
.sp
Beware that the SystemIO memory used by the I2C controller is reserved by ACPI\&. If only a native I2C driver (e\&.g\&. i2c_i801, as of 3\&.5\&.X Linux kernels) is available, then you\(cqll need to relax the ACPI resources check\&. For example, you can boot with the acpi_enforce_resources=lax option\&.
.SH "KNOWN ISSUES AND BUGS"
.sp
The driver shutdown function is not implemented, so other arrangements must be made to turn off the UPS\&.
.SH "AUTHORS"
.sp
Giuseppe Corbelli <giuseppe\&.corbelli@copanitalia\&.com>
.SH "SEE ALSO"
.SS "The core driver:"
.sp
\fBnutupsdrv\fR(8)
.SS "Internet resources:"
.sp
PB1300 specifications: http://www\&.asem\&.it/en/products/industrial\-automation/box\-pcs/performance/pb1300/
.sp
BQ2060 datasheet: http://www\&.ti\&.com/lit/ds/symlink/bq2060\&.pdf
.sp
The NUT (Network UPS Tools) home page: http://www\&.networkupstools\&.org/