asem(8) - f37

1ASEM(8)                           NUT Manual                           ASEM(8)
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NAME

6       asem - driver for UPS in ASEM PB1300
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NOTE

9       This man page only documents the hardware-specific features of the asem
10       driver. For information about the core driver, see nutupsdrv(8).
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SUPPORTED HARDWARE

13       The asem driver supports the UPS in ASEM PB1300 embedded PCs. Likely
14       other I2C devices from the same manufacturer will work too, since this
15       is a "custom" charger.
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17       Seems that there are two versions of the charger. Older one is based on
18       Max1667, newer one is a custom solution. Both are on I2C address 0x09.
19       To be compatible with both versions, the driver just reads bit 15 of
20       address 0x13 which yields online/on battery status. Battery monitor is
21       a BQ2060 at address 0x0B.
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EXTRA ARGUMENTS

24       The required parameter for this driver is the I2C bus name:
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26       port=dev-node
27           On the Asem PB1300, this should be /dev/i2c-7 for the i801 SMBUS
28           adapter.
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30       This driver also supports the following optional settings:
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32       lb=num
33           Set the low battery threshold to num volts.
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35       hb=num
36           Set the high battery threshold to num volts.
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INSTALLATION

39       This driver is specific to the Linux I2C API, and requires the
40       lm_sensors libi2c-dev or its equivalent to compile.
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42       Beware that the SystemIO memory used by the I2C controller is reserved
43       by ACPI. If only a native I2C driver (e.g. i2c_i801, as of 3.5.X Linux
44       kernels) is available, then you’ll need to relax the ACPI resources
45       check. For example, you can boot with the acpi_enforce_resources=lax
46       option.
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KNOWN ISSUES AND BUGS

49       The driver shutdown function is not implemented, so other arrangements
50       must be made to turn off the UPS.
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AUTHOR

53       Giuseppe Corbelli <giuseppe.corbelli@copanitalia.com>
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