Hi Loic, in my last post, make sure you return a v4l2_mbus_framefmt structure that contain yuv 720x480. Else the framework thinks your driver cannot supply this format. I do not know the exact enums myself, try to grep it in the linux kernel includes. In my test driver I added a printk(KERN_ALERT "blabla"); to all subdev calls to see when the framework calls which functions. good luck, Bastian 2011/3/2 Loïc Akue <akue.loic@xxxxxxxxx>: > Hi Bastien, > > Me again =) > Thank you for your previous reply. I added some code, so my saa7113 drivers > could be compatible with the new media framework. > But I still can get some video data, from my sub-device. I saw in a mailing > list that you had a similar issue, could you please help me on this? > > root@cm-t35:~# ./media-ctl -r -l '"saa7115 3-0024":0->"OMAP3 ISP CCDC":0[1], > "OMAP3 ISP CCDC":1->"OMAP3 ISP CCDC output":0[1]' > > Resetting all links to inactive > Setting up link 16:0 -> 5:0 [1] > Setting up link 5:1 -> 6:0 [1] > > My first problem appears when I try to configure my pads before trying to > capture > > ************************************************************************************************ > root@cm-t35:~# ./media-ctl -f '"saa7115 3-0024":0[UYVY 720x480], "OMAP3 ISP > CCDC":2[UYVY 720x480]' > > Setting up format UYVY 720x480 on pad saa7115 3-0024/0 > Format set: UYVY 720x480 > Setting up format UYVY 720x480 on pad OMAP3 ISP CCDC/0 > Format set: SGRBG10 720x480 > Setting up format UYVY 720x480 on pad OMAP3 ISP CCDC/2 > Format set: SGRBG10 720x479 > > Setting up format SGRBG10 720x479 on pad OMAP3 ISP AEWB/0 > Unable to set format: Invalid argument (-22) > Setting up format SGRBG10 720x479 on pad OMAP3 ISP AF/0 > Unable to set format: Invalid argument (-22) > Setting up format SGRBG10 720x479 on pad OMAP3 ISP histogram/0 > Unable to set format: Invalid argument (-22) > ************************************************************************************************ > Then, when I run this yavta command : > ************************************************************************************************ > root@cm-t35:~# ./yavta -f UYVY -s 720x480 -n 4 --capture=4 --skip 3 -F > $(./media > -ctl -e "OMAP3 ISP CCDC output") > > Device /dev/video2 opened: OMAP3 ISP CCDC output (media). > Video format set: width: 720 height: 480 buffer size: 691200 > Video format: UYVY (59565955) 720x480 > 4 buffers requested. > length: 691200 offset: 0 > Buffer 0 mapped at address 0x40306000. > length: 691200 offset: 692224 > Buffer 1 mapped at address 0x40417000. > length: 691200 offset: 1384448 > Buffer 2 mapped at address 0x404d1000. > length: 691200 offset: 2076672 > Buffer 3 mapped at address 0x405ed000. > Unable to start streaming: 22. > ************************************************************************************************ > And the system hangs. > Do you have any idea where to look? > > Regards > > Loïc > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
