Messages in this thread |  | | Date | Fri, 8 Jun 2018 20:54:43 +0200 | From | Marcus Folkesson <> | Subject | Re: [PATCH v3 1/3] usb: gadget: ccid: add support for USB CCID Gadget Device |
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Hi Felipe,
Should I send out v4 or what do you think?
On Wed, May 30, 2018 at 04:04:15PM +0200, Marcus Folkesson wrote: > Hi Filipe, > > On Wed, May 30, 2018 at 03:28:18PM +0300, Felipe Balbi wrote: > > Marcus Folkesson <marcus.folkesson@gmail.com> 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@gmail.com> > > > > this could be done entirely in userspace with functionfs, why do we need > > this part in the kernel? It does very little. > > Andrzej pointed this out, and I actually do not have any good answer > more than that the userspace application could be kept small and the > important configuration of the CCID device is done with well (I hope) > documented configfs attributes. > > > > > -- > > balbi > > Best regards, > Marcus Folkesson > >
Thank you, Marcus Folkesson
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