Re: Automatic device driver back-porting with media_build

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On 17/12/2015 15:55, Mauro Carvalho Chehab wrote:

> Did the driver compile fine?

Once all the modules finish building, I have many *.ko files in v4l.

I copy them to my target's /lib/modules/3.4.39.13/kernel
and run depmod -a

It seems modprobe rc-dvbsky doesn't bring in all the stuff needed
to actually use the device.

I added a few more modules at random:

Module                  Size  Used by
dvb_core               73479  0 
v4l2_common             1628  0 
videodev              111886  1 v4l2_common
media                   9838  1 videodev
rc_dvbsky                815  0 
rc_core                15521  1 rc_dvbsky

Probably needs dvb_usb but I don't see it built...

$ grep -rn '\<CONFIG_DVB_USB\>'
linux/drivers/media/usb/dvb-usb/Makefile:3:obj-$(CONFIG_DVB_USB) += dvb-usb.o
v4l/.myconfig:245:CONFIG_DVB_USB                               := n
v4l/Makefile.media:1010:obj-$(CONFIG_DVB_USB) += dvb-usb.o
v4l/config-compat.h:548:#undef CONFIG_DVB_USB
v4l/.config:183:# CONFIG_DVB_USB is not set

(All these files are generated by the build process.)

Am I doing something wrong?

Regards.

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