error: implicit declaration of function 'usb_buffer_free'

Swamy — Mon, 19 Sep 2011 09:02:53 GMT

I am finding following implicit declaration issue(below) when I use linux-
2.6.35.3 header files. Please let me know how to resolve this issue.

Regards,
Swamy

$ CROSS_COMPILE=/opt/freescale/usr/local/gcc-4.4.4-glibc-
2.11.1-multilib-1.0/arm-fsl-linux-gnueabi/bin/arm-none-linux-
gnueabi- ARCH=arm make

make -C /home/lucid/ltib/rpm/BUILD/linux-2.6.35.3
SUBDIRS=/home/Research/Tomtom/ttviewer/uvcvideo-2.6.32
modules
make[1]: Entering directory `/home/lucid/ltib/rpm/BUILD/linux-
2.6.35.3'
CC [M] /home/Research/Tomtom/ttviewer/uvcvideo-
2.6.32/uvc_video.o
/home/Research/Tomtom/ttviewer/uvcvideo-2.6.32/uvc_video.c:
In function 'uvc_free_urb_buffers':
/home/Research/Tomtom/ttviewer/uvcvideo-
2.6.32/uvc_video.c:737: error: implicit declaration of function 'usb_buffer_free'
/home/Research/Tomtom/ttviewer/uvcvideo-2.6.32/uvc_video.c:
In function 'uvc_alloc_urb_buffers':
/home/Research/Tomtom/ttviewer/uvcvideo-
2.6.32/uvc_video.c:777: error: implicit declaration of function 'usb_buffer_alloc'
/home/Research/Tomtom/ttviewer/uvcvideo-
2.6.32/uvc_video.c:779: warning: assignment makes pointer from integer without a cast
make[2]: *** [/home/Research/Tomtom/ttviewer/uvcvideo-
2.6.32/uvc_video.o] Error 1
make[1]: ***
[_module_/home/Research/Tomtom/ttviewer/uvcvideo-2.6.32]
Error 2
make[1]: Leaving directory `/home/lucid/ltib/rpm/BUILD/linux-
2.6.35.3'
make: *** [default] Error 2

Re: error: implicit declaration of function 'usb_buffer_free'

JimDonelson — Mon, 19 Sep 2011 12:08:28 GMT

You have an old version of the USB Video Class driver, that does not match your kernel headersl.

There should not be any calls to usb_buffer_free, as that call was renamed to usb_free_coherent.

topic Re: error: implicit declaration of function 'usb_buffer_free' in i.MX Processors

error: implicit declaration of function 'usb_buffer_free'

Re: error: implicit declaration of function 'usb_buffer_free'