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    SubjectRe: [PATCH 1/3] drivers/misc: Add realtek card reader core driver
    Hi Borislav:

    Realtek card reader supports not only SDMMC card, but also Memory stick.
    This part is the common code, so it is located in drivers/misc. There is
    also SDMMC-relevant code under CONFIG_MMC. And in the future,
    Memstick-relevant code will be added under CONFIG_MEMSTICK.

    BR,
    wwang

    于 2012年07月24日 00:33, Borislav Petkov 写道:
    > On Mon, Jul 23, 2012 at 05:42:38PM +0800, wei_wang@realsil.com.cn wrote:
    >> From: Wei WANG <wei_wang@realsil.com.cn>
    >>
    >> Realtek card reader core driver is the bus driver for Realtek
    >> driver-based card reader, which supplies adapter layer to
    >> be used by lower-level pci/usb card reader and upper-level
    >> sdmmc/memstick host driver.
    >>
    >> Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
    >> ---
    >> Documentation/misc-devices/realtek_cr.txt | 27 ++
    >> drivers/misc/Kconfig | 1 +
    >> drivers/misc/Makefile | 1 +
    >> drivers/misc/realtek_cr/Kconfig | 26 ++
    >> drivers/misc/realtek_cr/Makefile | 7 +
    >> drivers/misc/realtek_cr/core/Kconfig | 6 +
    >> drivers/misc/realtek_cr/core/Makefile | 1 +
    >> drivers/misc/realtek_cr/core/rtsx_core.c | 492 +++++++++++++++++++++++++++++
    >> include/linux/rtsx_core.h | 183 +++++++++++
    >> 9 files changed, 744 insertions(+)
    >> create mode 100644 Documentation/misc-devices/realtek_cr.txt
    >> create mode 100644 drivers/misc/realtek_cr/Kconfig
    >> create mode 100644 drivers/misc/realtek_cr/Makefile
    >> create mode 100644 drivers/misc/realtek_cr/core/Kconfig
    >> create mode 100644 drivers/misc/realtek_cr/core/Makefile
    >> create mode 100644 drivers/misc/realtek_cr/core/rtsx_core.c
    >> create mode 100644 include/linux/rtsx_core.h
    >>
    >> diff --git a/Documentation/misc-devices/realtek_cr.txt b/Documentation/misc-devices/realtek_cr.txt
    >> new file mode 100644
    >> index 0000000..b4e6fbe
    >> --- /dev/null
    >> +++ b/Documentation/misc-devices/realtek_cr.txt
    >> @@ -0,0 +1,27 @@
    >> +Realtek Driver-based Card Reader
    >> +================================
    >> +
    >> +Supported chips:
    >> +RTS5209
    >> +RTS5229
    >> +
    >> +Contact Email:
    >> +pc_sw_linux@realsil.com.cn
    >> +
    >> +
    >> +Description
    >> +-----------
    >> +
    >> +Realtek driver-based card reader supports access to many types of memory cards,
    >> +such as Memory Stick, Memory Stick Pro, Secure Digital and MultiMediaCard.
    >> +
    >> +
    >> +udev rules
    >> +----------
    >> +
    >> +In order to modprobe Realtek SD/MMC interface driver automatically, the following rule
    >> +should be added to the udev rules file:
    >> +
    >> +SUBSYSTEM=="rtsx_cr", ENV{RTSX_CARD_TYPE}=="SD", RUN+="/sbin/modprobe -bv rtsx_sdmmc"
    >> +
    >> +Typically, we may edit /lib/udev/rules.d/80-drivers.rules and copy the rule into it in Ubuntu.
    >> diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
    >> index 2661f6e..09ce905 100644
    >> --- a/drivers/misc/Kconfig
    >> +++ b/drivers/misc/Kconfig
    >> @@ -517,4 +517,5 @@ source "drivers/misc/lis3lv02d/Kconfig"
    >> source "drivers/misc/carma/Kconfig"
    >> source "drivers/misc/altera-stapl/Kconfig"
    >> source "drivers/misc/mei/Kconfig"
    >> +source "drivers/misc/realtek_cr/Kconfig"
    >> endmenu
    >> diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
    >> index 456972f..c09f147 100644
    >> --- a/drivers/misc/Makefile
    >> +++ b/drivers/misc/Makefile
    >> @@ -51,3 +51,4 @@ obj-y += carma/
    >> obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
    >> obj-$(CONFIG_ALTERA_STAPL) +=altera-stapl/
    >> obj-$(CONFIG_INTEL_MEI) += mei/
    >> +obj-$(CONFIG_REALTEK_CR_SUPPORT) += realtek_cr/
    >> diff --git a/drivers/misc/realtek_cr/Kconfig b/drivers/misc/realtek_cr/Kconfig
    >> new file mode 100644
    >> index 0000000..303d98a
    >> --- /dev/null
    >> +++ b/drivers/misc/realtek_cr/Kconfig
    >> @@ -0,0 +1,26 @@
    >> +#
    >> +# Realtek driver-based card reader
    >> +#
    >> +
    >> +menuconfig REALTEK_CR_SUPPORT
    >> + tristate "Realtek driver-based card reader"
    >> + help
    >> + Realtek driver-based card reader supports access to many types of
    >> + memory cards, such as Memory Stick, Memory Stick Pro, Secure Digital
    >> + and MultiMediaCard.
    >> +
    >> + If you want to use Realtek driver-based card reader, enable this
    >> + option and other options below.
    >> +
    >> +config REALTEK_CR_DEBUG
    >> + bool "Realtek driver-based card reader debugging"
    >> + depends on REALTEK_CR_SUPPORT != n
    >> + help
    >> + This is an option for use by developers; most people should
    >> + say N here. This enables Realtek card reader driver debugging.
    >> +
    >> +if REALTEK_CR_SUPPORT
    >> +
    >> +source "drivers/misc/realtek_cr/core/Kconfig"
    >> +
    >> +endif
    > Ok, maybe I'm a newbie here but this is a card reader driver and AFAICT
    > it should be placed under CONFIG_MMC. Why is it under drivers/misc?
    >

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