Import Kevin Lo's port of urtwn(4) from OpenBSD. urtwn(4) is a driver for the

Realtek RTL8188CU/RTL8192CU USB IEEE 802.11b/g/n wireless cards.
This driver requires microcode which is available in FreeBSD ports:
net/urtwn-firmware-kmod.

Hiren ported the urtwn(4) man page from OpenBSD and Glen just commited a port
for the firmware.

TODO:
- 802.11n support
- Stability fixes - the driver can sustain lots of traffic but has trouble
coping with simultaneous iperf sessions.
- fix debugging

MFC after:	2 months
Tested by:	kevlo, hiren, gjb

2 files changed, 11 insertions, 1 deletions

diff --git a/sys/modules/usb/Makefile b/sys/modules/usb/Makefile
index 6481838..29255e7 100644
--- a/sys/modules/usb/Makefile
+++ b/sys/modules/usb/Makefile
@@ -32,7 +32,7 @@
 
 SUBDIR = usb
 SUBDIR += ${_dwc_otg} ehci ${_musb} ohci uhci xhci ${_uss820dci} ${_at91dci} ${_atmegadci} ${_avr32dci}
-SUBDIR += ${_rum} run ${_uath} upgt usie ural ${_zyd} ${_urtw}
+SUBDIR += ${_rum} run ${_uath} upgt usie ural ${_zyd} ${_urtw} urtwn
 SUBDIR += atp uhid ukbd ums udbp ufm uep
 SUBDIR += ucom u3g uark ubsa ubser uchcom ucycom ufoma uftdi ugensa uipaq ulpt \
 	  umct umcs umodem umoscom uplcom uslcom uvisor uvscom
diff --git a/sys/modules/usb/urtwn/Makefile b/sys/modules/usb/urtwn/Makefile
new file mode 100644
index 0000000..58c409a
--- /dev/null
+++ b/sys/modules/usb/urtwn/Makefile
@@ -0,0 +1,10 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../../dev/usb/wlan
+
+KMOD    = if_urtwn
+SRCS    = if_urtwn.c if_urtwnreg.h \
+	  bus_if.h device_if.h \
+	  opt_bus.h opt_usb.h usb_if.h usbdevs.h
+
+.include <bsd.kmod.mk>