Re: Query related to MSR(Magnetic Stripe Reader) Device Driver

Priyaranjan Das
2013-01-28T09:55:16Z

Hi Greg,

On Tue, Jan 22, 2013 at 10:06 PM, Greg KH <gregkh@linuxfoundation.org> wrote:
> On Tue, Jan 22, 2013 at 03:02:32PM +0530, Priyaranjan Das wrote:
>> Hi All,
>>
>> I am working on MSR(Magnetic Stripe Reader) for a product . I wish to
>> know whether any MSR( Magnetic Stripe/card Reader) driver is available
>> in the current source or not. I need this for reference. Could anyone
>> please help me?
>
> Most of these types of devices that I have worked with always show up as
> a keyboard device (ps/2 pass-through or a USB hid device.) What type of
> interface does your device present to the operating system?
>

The MSR will be a part of a SoC. It is a memory mapped device hence
there is no interface like USB.
MSR IP contains an ADC which the driver will read and interpret the
data. I am planning to write a Driver for the same. Will this driver
fall under drivers/mfd/* ?

Regards,
Priyaranjan