When built with: CONFIG_USB=m CONFIG_VIDEO_USBVISION=y It causes ld errors: ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_write_reg_irq': usbvision-core.c:(.text+0x8a4): undefined reference to `usb_submit_urb' ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_isoc_irq': usbvision-core.c:(.text+0x2ee8): undefined reference to `usb_submit_urb' ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_read_reg': usbvision-core.c:(.text+0x30ad): undefined reference to `usb_control_msg' ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_write_reg': usbvision-core.c:(.text+0x3178): undefined reference to `usb_control_msg' ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_set_output': usbvision-core.c:(.text+0x344e): undefined reference to `usb_control_msg' ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_set_input': usbvision-core.c:(.text+0x3b9b): undefined reference to `usb_control_msg' ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_setup': usbvision-core.c:(.text+0x4009): undefined reference to `usb_control_msg' ld: drivers/staging/media/usbvision/usbvision-core.o:usbvision-core.c:(.text+0x417f): more undefined references to `usb_control_msg' follow ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_set_alternate': usbvision-core.c:(.text+0x4518): undefined reference to `usb_set_interface' ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_init_isoc': usbvision-core.c:(.text+0x4673): undefined reference to `usb_alloc_urb' ld: usbvision-core.c:(.text+0x46a5): undefined reference to `usb_alloc_coherent' ld: usbvision-core.c:(.text+0x4765): undefined reference to `usb_submit_urb' ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_stop_isoc': usbvision-core.c:(.text+0x4837): undefined reference to `usb_kill_urb' ld: usbvision-core.c:(.text+0x485f): undefined reference to `usb_free_coherent' ld: usbvision-core.c:(.text+0x4874): undefined reference to `usb_free_urb' ld: usbvision-core.c:(.text+0x48f1): undefined reference to `usb_set_interface' ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_release': usbvision-video.c:(.text+0x1a8a): undefined reference to `usb_free_urb' ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_disconnect': usbvision-video.c:(.text+0x1b74): undefined reference to `usb_put_dev' ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_radio_close': usbvision-video.c:(.text+0x1c89): undefined reference to `usb_set_interface' ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_probe': usbvision-video.c:(.text+0x1e4b): undefined reference to `usb_get_dev' ld: usbvision-video.c:(.text+0x20e1): undefined reference to `usb_alloc_urb' ld: usbvision-video.c:(.text+0x2797): undefined reference to `usb_put_dev' ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_exit': usbvision-video.c:(.exit.text+0x37): undefined reference to `usb_deregister' ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_init': usbvision-video.c:(.init.text+0xf9): undefined reference to `usb_register_driver' ld: drivers/staging/media/usbvision/usbvision-i2c.o: in function `usbvision_i2c_write': usbvision-i2c.c:(.text+0x2f4): undefined reference to `usb_control_msg' Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> --- drivers/staging/media/usbvision/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/media/usbvision/Kconfig b/drivers/staging/media/usbvision/Kconfig index c6e1afb5ac48..1c7da2a2caac 100644 --- a/drivers/staging/media/usbvision/Kconfig +++ b/drivers/staging/media/usbvision/Kconfig @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only config VIDEO_USBVISION tristate "USB video devices based on Nogatech NT1003/1004/1005 (Deprecated)" - depends on MEDIA_USB_SUPPORT && I2C && VIDEO_V4L2 + depends on MEDIA_USB_SUPPORT && I2C && VIDEO_V4L2 && USB select VIDEO_TUNER select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT help -- 2.25.2
