On Thu, 06 Nov 2014, Octavian Purdila wrote: > This patch implements the USB part of the Diolan USB-I2C/SPI/GPIO > Master Adapter DLN-2. Details about the device can be found here: > > https://www.diolan.com/i2c/i2c_interface.html. > > Information about the USB protocol can be found in the Programmer's > Reference Manual [1], see section 1.7. > > Because the hardware has a single transmit endpoint and a single > receive endpoint the communication between the various DLN2 drivers > and the hardware will be muxed/demuxed by this driver. > > Each DLN2 module will be identified by the handle field within the DLN2 > message header. If a DLN2 module issues multiple commands in parallel > they will be identified by the echo counter field in the message header. > > The DLN2 modules can use the dln2_transfer() function to issue a > command and wait for its response. They can also register a callback > that is going to be called when a specific event id is generated by > the device (e.g. GPIO interrupts). The device uses handle 0 for > sending events. > > [1] https://www.diolan.com/downloads/dln-api-manual.pdf > > Signed-off-by: Octavian Purdila <octavian.purdila@xxxxxxxxx> > Reviewed-by: Johan Hovold <johan@xxxxxxxxxx> Great! Thanks Johan. > --- > drivers/mfd/Kconfig | 11 + > drivers/mfd/Makefile | 1 + > drivers/mfd/dln2.c | 763 +++++++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/dln2.h | 103 +++++++ > 4 files changed, 878 insertions(+) > create mode 100644 drivers/mfd/dln2.c > create mode 100644 include/linux/mfd/dln2.h > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index cbdb109..32d7cab 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -189,6 +189,17 @@ config MFD_DA9063 > Additional drivers must be enabled in order to use the functionality > of the device. > > +config MFD_DLN2 > + tristate "Diolan DLN2 support" > + select MFD_CORE > + depends on USB > + help > + I've removed this line and applied the set. I will send out a pull-request to the other Maintainers shortly. [...] -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
