[2.6 patch] VIDEO_CPIA2 must depend on USB

[Adrian Bunk <bunk@stusta.de>]

CONFIG_VIDEO_CPIA2=y, CONFIG_USB=n results in the following compile 
error:


<--  snip  -->

...
  LD      .tmp_vmlinux1
drivers/built-in.o: In function `set_alternate':cpia2_usb.c:(.text+0x443aa2): undefined reference to `usb_set_interface'
:cpia2_usb.c:(.text+0x443abe): undefined reference to `usb_set_interface'
drivers/built-in.o: In function `cpia2_usb_stream_resume': undefined reference to `usb_alloc_urb'
drivers/built-in.o: In function `cpia2_usb_stream_resume': undefined reference to `usb_submit_urb'
drivers/built-in.o: In function `cpia2_usb_stream_pause': undefined reference to `usb_kill_urb'
drivers/built-in.o: In function `cpia2_usb_stream_pause': undefined reference to `usb_free_urb'
drivers/built-in.o: In function `cpia2_usb_disconnect':cpia2_usb.c:(.text+0x443e14): undefined reference to `usb_driver_release_interface'
drivers/built-in.o: In function `cpia2_usb_transfer_cmd': undefined reference to `usb_control_msg'
drivers/built-in.o: In function `cpia2_usb_transfer_cmd': undefined reference to `usb_control_msg'
drivers/built-in.o: In function `cpia2_usb_complete':cpia2_usb.c:(.text+0x444836): undefined reference to `usb_submit_urb'
drivers/built-in.o: In function `cpia2_usb_cleanup': undefined reference to `usb_deregister'
drivers/built-in.o: In function `cpia2_usb_init': undefined reference to `usb_register_driver'
make: *** [.tmp_vmlinux1] Error 1

<--  snip  -->


Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6.16-rc6-mm1-full/drivers/media/video/Kconfig.old	2006-03-16 14:19:19.000000000 +0100
+++ linux-2.6.16-rc6-mm1-full/drivers/media/video/Kconfig	2006-03-16 14:19:36.000000000 +0100
@@ -144,7 +144,7 @@
 
 config VIDEO_CPIA2
 	tristate "CPiA2 Video For Linux"
-	depends on VIDEO_DEV
+	depends on VIDEO_DEV && USB
 	---help---
 	  This is the video4linux driver for cameras based on Vision's CPiA2
 	  (Colour Processor Interface ASIC), such as the Digital Blue QX5