From: Felipe Balbi <balbi@kernel.org>
To: Marcus Folkesson <marcus.folkesson@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jonathan Corbet <corbet@lwn.net>,
davem@davemloft.net,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
Ruslan Bilovol <ruslan.bilovol@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org,
Marcus Folkesson <marcus.folkesson@gmail.com>
Subject: Re: [PATCH v3 1/3] usb: gadget: ccid: add support for USB CCID Gadget Device
Date: Wed, 30 May 2018 15:28:18 +0300 [thread overview]
Message-ID: <87r2ltcopp.fsf@linux.intel.com> (raw)
In-Reply-To: <20180529185021.13738-1-marcus.folkesson@gmail.com>
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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.
--
balbi
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WARNING: multiple messages have this Message-ID (diff)
From: Felipe Balbi <balbi@kernel.org>
To: Marcus Folkesson <marcus.folkesson@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jonathan Corbet <corbet@lwn.net>,
davem@davemloft.net,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
Ruslan Bilovol <ruslan.bilovol@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [v3,1/3] usb: gadget: ccid: add support for USB CCID Gadget Device
Date: Wed, 30 May 2018 15:28:18 +0300 [thread overview]
Message-ID: <87r2ltcopp.fsf@linux.intel.com> (raw)
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.
next prev parent reply other threads:[~2018-05-30 12:30 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-29 18:50 [PATCH v3 1/3] usb: gadget: ccid: add support for USB CCID Gadget Device Marcus Folkesson
2018-05-29 18:50 ` Marcus Folkesson
2018-05-29 18:50 ` [v3,1/3] " Marcus Folkesson
2018-05-29 18:50 ` [PATCH v3 2/3] Documentation: usb: add documentation " Marcus Folkesson
2018-05-29 18:50 ` Marcus Folkesson
2018-05-29 18:50 ` [v3,2/3] " Marcus Folkesson
2018-05-29 20:27 ` [PATCH v3 2/3] " Randy Dunlap
2018-05-29 20:27 ` Randy Dunlap
2018-05-29 20:27 ` [v3,2/3] " Randy Dunlap
2018-05-30 11:34 ` [PATCH v3 2/3] " Marcus Folkesson
2018-05-30 11:34 ` Marcus Folkesson
2018-05-30 11:34 ` [v3,2/3] " Marcus Folkesson
2018-05-29 18:50 ` [PATCH v3 3/3] MAINTAINERS: add " Marcus Folkesson
2018-05-29 18:50 ` Marcus Folkesson
2018-05-29 18:50 ` [v3,3/3] " Marcus Folkesson
2018-05-30 0:55 ` [PATCH v3 1/3] usb: gadget: ccid: add support for " Andy Shevchenko
2018-05-30 0:55 ` Andy Shevchenko
2018-05-30 0:55 ` [v3,1/3] " Andy Shevchenko
2018-05-30 11:24 ` [PATCH v3 1/3] " Marcus Folkesson
2018-05-30 11:24 ` Marcus Folkesson
2018-05-30 11:24 ` [v3,1/3] " Marcus Folkesson
2018-05-30 11:30 ` [PATCH v3 1/3] " Greg Kroah-Hartman
2018-05-30 11:30 ` Greg Kroah-Hartman
2018-05-30 11:30 ` [v3,1/3] " Greg Kroah-Hartman
2018-05-30 12:13 ` [PATCH v3 1/3] " Marcus Folkesson
2018-05-30 12:13 ` Marcus Folkesson
2018-05-30 12:13 ` [v3,1/3] " Marcus Folkesson
2018-05-30 12:20 ` [PATCH v3 1/3] " Greg Kroah-Hartman
2018-05-30 12:20 ` Greg Kroah-Hartman
2018-05-30 12:20 ` [v3,1/3] " Greg Kroah-Hartman
2018-05-30 12:28 ` Felipe Balbi [this message]
2018-05-30 12:28 ` Felipe Balbi
2018-05-30 14:04 ` [PATCH v3 1/3] " Marcus Folkesson
2018-05-30 14:04 ` Marcus Folkesson
2018-05-30 14:04 ` [v3,1/3] " Marcus Folkesson
2018-06-08 18:54 ` [PATCH v3 1/3] " Marcus Folkesson
2018-06-08 18:54 ` Marcus Folkesson
2018-06-08 18:54 ` [v3,1/3] " Marcus Folkesson
2018-06-18 8:22 ` [PATCH v3 1/3] " Felipe Balbi
2018-06-18 8:22 ` [v3,1/3] " Felipe Balbi
2018-06-22 16:48 ` [PATCH v3 1/3] " Marcus Folkesson
2018-06-22 16:48 ` Marcus Folkesson
2018-06-22 16:48 ` [v3,1/3] " Marcus Folkesson
2018-07-10 18:46 ` [PATCH v3 1/3] " Marcus Folkesson
2018-07-10 18:46 ` Marcus Folkesson
2018-07-10 18:46 ` [v3,1/3] " Marcus Folkesson
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