Battery integration on Android ICS

Hi Kumar ,

You have to hook the driver to kernel.

add its entry in i2c_board_info structure in  your board file.

the entry contains the driver name and i2c address of your battery IC.

After the compiling check the entry in /sys/class/power_supply/

Your driver name should be listed there.

Regards,

Dibin

Thanks for your reply Mr.Dibin

             Please can you give me a detailed procedure ? I'm newbie to i2c. My IC i2c address is 0xAA (BQ27500) how to find the driver name and how to register it with my board file?

 Thanks

SAngili

Hi

, Check your driver file ,

it will be android/kernel/drivers/power/*

There will be struct i2c_driver bq27x00_battery_driver structure and you can find the name in that structure.

Then please check your board file (**evm.c) . In my previous replay i have mentioned the structure to which the name and address to be added.

I dont have the omap3evm sources with me. If you have any difficulties please sent me your board file and driver file.

Regards,

Dibin

Thanks Mr.Dibin

             I did some modification but no effect. Its taking too much of time because of building the kernel again and again. 

             Here i've attached my board file, driver file and datasheet of bq27500 (i2c address confirmation). Please find it

Once again thanks for your help Mr.Dibin 

2352.board-am335xevm.c

6431.bq27x00_battery.c

0207.bq7500.pdf

Thanks

Kumar

Hi Kumar,

To which i2c bus your battery  IC is connected?

Regards,

Dibin

Thanks for your reply 

        I've solved it by adding this lines in i2c0 bus

{
I2C_BOARD_INFO("bq27500", 0x55),
},

I can see the uevent in /sys/class/power_supply/bq27500