getting new hardware (arbor M1526) buttons to work w/ acpi

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Hello list,

I've a kiosk computer named arbor m1526
(http://www.arbor.com.tw/products/detail.aspx?Product_Name=M1526.)
this hardware has some functions key (F1-F8) that are connected to
Embedded Controller.

The company do not provide Linux support to these buttons but provided
information on addresses as follows:
EC RAM Address 0x0501

Bit0 = 1 indicative F1 Button be pressed
Bit1 = 1 indicative F2 Button be pressed
Bit2 = 1 indicative F3 Button be pressed
Bit3 = 1 indicative F4 Button be pressed
Bit4 = 1 indicative F5 Button be pressed
Bit5 = 1 indicative F6 Button be pressed
Bit6 = 1 indicative F7 Button be pressed
Bit7 = 1 indicative F8 Button be pressed
P.S. If read finish please clear EC ram bit flag.

I would like to write a new acpi patch/file to the linux kernel for
supporting these buttons.
seems to me that the right place is writing a new file at drivers/platform/x86

I'm looking for some good doc. or template for writing a new hardware
acpi support.

any help will be appreciate,

tnx,

--Y
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