Hello, trying (3) below and hitting [ 6241.536071] WARNING: at drivers/media/v4l2-core/v4l2-subdev.c:424 v4l2_subdev_link_validate_get_format+0x90/0xa8() [ 6241.573150] Driver bug! Wrong media entity type 65536, entity OMAP3 ISP resizer input [ 6241.595153] [<c0011cdc>] (unwind_backtrace+0x0/0xe0) from [<c002ed28>] (warn_slowpath_common+0x4c/0x64) [ 6241.605651] [<c002ed28>] (warn_slowpath_common+0x4c/0x64) from [<c002edc0>] (warn_slowpath_fmt+0x2c/0x3c) [ 6241.615997] [<c002edc0>] (warn_slowpath_fmt+0x2c/0x3c) from [<c027e2e4>] (v4l2_subdev_link_validate_get_format+0x90/0xa8) [ 6241.632751] [<c027e2e4>] (v4l2_subdev_link_validate_get_format+0x90/0xa8) from [<c027e314>] (v4l2_subdev_link_validate+0x18) [ 6241.645324] [<c027e314>] (v4l2_subdev_link_validate+0x18/0xac) from [<c0272954>] (media_entity_pipeline_start+0xc8/0x170) [ 6241.657012] [<c0272954>] (media_entity_pipeline_start+0xc8/0x170) from [<c0285820>] (isp_video_streamon+0xa4/0x314) [ 6241.672027] [<c0285820>] (isp_video_streamon+0xa4/0x314) from [<c02748ec>] (v4l_streamon+0x18/0x1c) [ 6241.681884] [<c02748ec>] (v4l_streamon+0x18/0x1c) from [<c02779c0>] (__video_do_ioctl+0x1c4/0x2e4) [ 6241.691558] [<c02779c0>] (__video_do_ioctl+0x1c4/0x2e4) from [<c0277d84>] (video_usercopy+0x2a4/0x3e0) [ 6241.701507] [<c0277d84>] (video_usercopy+0x2a4/0x3e0) from [<c02730e0>] (v4l2_ioctl+0x6c/0x110) [ 6241.715240] [<c02730e0>] (v4l2_ioctl+0x6c/0x110) from [<c00c36ec>] (do_vfs_ioctl+0x548/0x5b8) [ 6241.724792] [<c00c36ec>] (do_vfs_ioctl+0x548/0x5b8) from [<c00c3794>] (sys_ioctl+0x38/0x54) [ 6241.733795] [<c00c3794>] (sys_ioctl+0x38/0x54) from [<c000d420>] (ret_fast_syscall+0x0/0x30) [ 6241.743438] ---[ end trace 3ce601d6bddf2d7e ]--- pipeline is media-ctl -r media-ctl -l '"OMAP3 ISP resizer input":0->"OMAP3 ISP resizer":0[1]' media-ctl -l '"OMAP3 ISP resizer":1->"OMAP3 ISP resizer output":0[1]' media-ctl -V '"OMAP3 ISP resizer":0 [YUYV2X8 640x480]' media-ctl -V '"OMAP3 ISP resizer":1 [YUYV2X8 320x240]' I'm opening /dev/video5 and /dev/video6, do S_FMT on both as VIDEO_OUTPUT and VIDEO_CAPTURE, respectively, configure buffers and then STREAMON -- bang! regards, p. -- Peter Meerwald +43-664-2444418 (mobile) ---------- Forwarded message ---------- Date: Tue, 11 Feb 2014 15:54:00 +0100 (CET) From: Peter Meerwald <pmeerw@xxxxxxxxxx> To: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Cc: linux-media@xxxxxxxxxxxxxxx, linux-omap@xxxxxxxxxxxxxxx Subject: OMAP3 ISP capabilities Hello Laurent, some quick question about the OMAP3 ISP pipeline capabilities: (1) can the OMAP3 ISP CCDC output concurrently to memory AND the resizer in YUV mode? I think the answer is no due to hardware limitation (2) in RAW mode, I think it should be possible to connect pad 1 of the OMAP3 ISP CCDC to CCDC output and pad 2 to the ISP preview and subsequently to the resizer? so two stream can be read concurrently from video2 and video6? (3) it should be possible to use the ISP resizer input / output (memory-to-memory) independently; it there any example code doing this? thanks, regards, p. -- Peter Meerwald +43-664-2444418 (mobile) -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
