Re: [PATCH v3 1/3] usb: gadget: ccid: add support for USB CCID Gadget Device

[Felipe Balbi]

Marcus Folkesson <marcus.folkesson@xxxxxxxxx> writes:

> Chip Card Interface Device (CCID) protocol is a USB protocol that
> allows a smartcard device to be connected to a computer via a card
> reader using a standard USB interface, without the need for each manufacturer
> of smartcards to provide its own reader or protocol.
>
> This gadget driver makes Linux show up as a CCID device to the host and let a
> userspace daemon act as the smartcard.
>
> This is useful when the Linux gadget itself should act as a cryptographic
> device or forward APDUs to an embedded smartcard device.
>
> Signed-off-by: Marcus Folkesson <marcus.folkesson@xxxxxxxxx>

this could be done entirely in userspace with functionfs, why do we need
this part in the kernel? It does very little.

-- 
balbi

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