char/pcmcia: add scr24x_cs chip card interface driver

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This implements only the very basic protocol "Mode A", just to make the
device functional. Patches to implement "Mode C" that uses better bulking
and is interrupt-driver may follow.

The device essentially speaks the same protocol as USB CCID devices do over
the bulk endpoints. The driver exchanges the command submissions and
responses over a plain read()/write() interface, compatible with legacy
OpenCT's pcmcia_block driver.

Patches for the newer CCID driver are available:
https://github.com/lkundrak/CCID/tree/lr/pcmcia_block

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Lubomir Rintel 2016-10-25 16:28:10 +02:00 • committed by Greg Kroah-Hartman

parent acbb910ae0

commit f2ed287bcc

4 changed files with 389 additions and 0 deletions

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5

MAINTAINERS

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11

drivers/char/pcmcia/Kconfig

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1

drivers/char/pcmcia/Makefile

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372

drivers/char/pcmcia/scr24x_cs.c

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