Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 13 Jan 2009 11:03:41 -0600
From:      Dan Nelson <>
To:        michael <>
Subject:   Re: laptop battery + i2c bus reprogramming
Message-ID:  <>
In-Reply-To: <>
References:  <>

Next in thread | Previous in thread | Raw E-Mail | Index | Archive | Help
In the last episode (Jan 10), michael said:
> several of my laptop batteries(L-ION) have an i2c bus to the eeprom
> inside the case. is it possible to reprogram or reset a battery i
> have repacked from within freebsd or will i need to do this with the
> available windows programs?
> what i'm asking is if freebsd actually supports sending of data over
> the i2c bus from userland.

The iic driver seems to provide ioctls for userland manipulation; as
long as you know what to send (and assuming the kernel driver finds the
i2c chip), it should work.

	Dan Nelson

Want to link to this message? Use this URL: <>