Config/build changes to better support the RTL8187

drivers/usbhost/Kconfig

@@ -284,6 +284,27 @@ config HIDMOUSE_WTHRESH
 endif # MOUSE_WHEEL
 endif # USBHOST_HIDMOUSE
 
+config USBHOST_RTL8187
+	bool "RTL8187-based wireless LAN"
+	default n
+	depends on NET
+
+if USBHOST_RTL8187
+
+config RTL8187B
+	bool "RTL8187B chip"
+	default y
+
+config RTL8187_VID
+	hex "RTL8187 VID"
+	default 0x0bda
+
+config RTL8187_PID
+	hex "RTL8187 PID"
+	default 0x8189
+
+endif # USBHOST_RTL8187
+
 config USBHOST_TRACE
 	bool "Enable USB HCD tracing for debug"
 	default n

drivers/usbhost/Make.defs

@@ -60,9 +60,9 @@ CSRCS += usbhost_trace.c
 endif
 endif
 
-# Include add-on USB host driver logic (see misc/drivers)
+# Include add-on USB host driver logic if present and selected (see misc/drivers)
 
-ifeq ($(CONFIG_NET),y)
+ifeq ($(CONFIG_USBHOST_RTL8187),y)
   RTL8187_CSRC := ${shell if [ -f usbhost$(DELIM)rtl8187x.c ]; then echo "rtl8187x.c"; fi}
   CSRCS += $(RTL8187_CSRC)
 endif