[IrDA]: Kingsun Dazzle IrDA USB driver

This dongle does not follow the usb-irda specification, so it needs its own
special driver. Just like the Kingsun/Donshine dongle, it exposes two
interrupt endpoints. Reception is performed through direct reads from the
input endpoint. Transmission requires splitting the IrDA frames into 8-byte
segments, in which the first byte encodes how many of the remaining 7 bytes
are used as data. Speed change is made with a control URB just like the one
in cypress_m8, and it seems to support up to 115200 bps.

On plugin, this dongle reports vendor and device IDs: 0x07d0:0x4100

Signed-off-by: Alex Villacís Lasso <a_villacis@palosanto.com>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/net/irda/Kconfig b/drivers/net/irda/Kconfig
index 2098d0af8ff..cfa7b8835d3 100644
--- a/drivers/net/irda/Kconfig
+++ b/drivers/net/irda/Kconfig
@@ -162,7 +162,19 @@ config EP7211_DONGLE
           Say Y here if you want to build support for the Cirrus logic
           EP7211 chipset's infrared module.
 
+config KSDAZZLE_DONGLE
+        tristate "KingSun Dazzle IrDA-USB dongle (EXPERIMENTAL)"
+        depends on IRDA && USB && EXPERIMENTAL
+        help
+          Say Y or M here if you want to build support for the KingSun Dazzle
+          IrDA-USB bridge device driver.
+
+          This USB bridge does not conform to the IrDA-USB device class
+          specification, and therefore needs its own specific driver. This
+          dongle supports SIR speeds only (9600 through 115200 bps).
 
+          To compile it as a module, choose M here: the module will be called
+          ksdazzle-sir.
 
 comment "Old SIR device drivers"