{"action":"created","issue":{"url":"https://api.github.com/repos/IntelRealSense/librealsense/issues/49","repository_url":"https://api.github.com/repos/IntelRealSense/librealsense","labels_url":"https://api.github.com/repos/IntelRealSense/librealsense/issues/49/labels{/name}","comments_url":"https://api.github.com/repos/IntelRealSense/librealsense/issues/49/comments","events_url":"https://api.github.com/repos/IntelRealSense/librealsense/issues/49/events","html_url":"https://github.com/IntelRealSense/librealsense/issues/49","id":137822188,"number":49,"title":"Subdevice 0 bad magic number","user":{"login":"severin-lemaignan","id":385379,"avatar_url":"https://avatars.githubusercontent.com/u/385379?v=3","gravatar_id":"","url":"https://api.github.com/users/severin-lemaignan","html_url":"https://github.com/severin-lemaignan","followers_url":"https://api.github.com/users/severin-lemaignan/followers","following_url":"https://api.github.com/users/severin-lemaignan/following{/other_user}","gists_url":"https://api.github.com/users/severin-lemaignan/gists{/gist_id}","starred_url":"https://api.github.com/users/severin-lemaignan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/severin-lemaignan/subscriptions","organizations_url":"https://api.github.com/users/severin-lemaignan/orgs","repos_url":"https://api.github.com/users/severin-lemaignan/repos","events_url":"https://api.github.com/users/severin-lemaignan/events{/privacy}","received_events_url":"https://api.github.com/users/severin-lemaignan/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/IntelRealSense/librealsense/labels/hardware","name":"hardware","color":"fbca04"},{"url":"https://api.github.com/repos/IntelRealSense/librealsense/labels/R200","name":"R200","color":"0052cc"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":18,"created_at":"2016-03-02T09:36:08Z","updated_at":"2016-03-10T04:29:22Z","closed_at":null,"body":"I have the following issue when trying to use a R200 with `librealsense`:\r\n\r\n``` \r\n$ ./cpp-capture\r\nCapturing DEPTH at 480 x 360, fov = 56.4 x 43.9, distortion = NONE\r\nCapturing COLOR at 640 x 480, fov = 54.5 x 41.9, distortion = MODIFIED_BROWN_CONRADY\r\nCapturing INFRARED at 480 x 360, fov = 56.4 x 43.9, distortion = NONE\r\nCapturing INFRARED2 at 480 x 360, fov = 56.4 x 43.9, distortion = NONE\r\nrs.warn: Subdevice 0 bad magic number 0x0\r\nrs.warn: Subdevice 0 bad magic number 0x0\r\nrs.warn: Subdevice 0 bad magic number 0x0\r\nrs.warn: Subdevice 0 bad magic number 0x0\r\nrs.warn: Subdevice 0 frame status 0x1\r\nrs.warn: Subdevice 1 frame status 0x1\r\nrs.warn: Subdevice 0 frame status 0x1\r\nrs.warn: Subdevice 1 frame status 0x1\r\n[...]\r\nRealSense error calling rs_wait_for_frames(device:0x940091c):\r\n    Timeout waiting for frames.\r\n``` \r\nNote that the capture **works as expected with both the F200 and the SR300**.\r\n\r\nHere the details of the camera (it is hopefully running an up-to-date firmware):\r\n```\r\n$ ./cpp-enumerate-devices \r\nDevice 0 - Intel RealSense R200:\r\n Serial number: 2211011528\r\n Firmware version: 1.0.72.06\r\n Supported options:\r\n[...]\r\n```\r\n\r\nI'm running a freshly updated Ubuntu 14.04.4 with a patched 4.4 kernel.\r\n\r\nAny idea?"},"comment":{"url":"https://api.github.com/repos/IntelRealSense/librealsense/issues/comments/194658282","html_url":"https://github.com/IntelRealSense/librealsense/issues/49#issuecomment-194658282","issue_url":"https://api.github.com/repos/IntelRealSense/librealsense/issues/49","id":194658282,"user":{"login":"ddiakopoulos","id":871903,"avatar_url":"https://avatars.githubusercontent.com/u/871903?v=3","gravatar_id":"","url":"https://api.github.com/users/ddiakopoulos","html_url":"https://github.com/ddiakopoulos","followers_url":"https://api.github.com/users/ddiakopoulos/followers","following_url":"https://api.github.com/users/ddiakopoulos/following{/other_user}","gists_url":"https://api.github.com/users/ddiakopoulos/gists{/gist_id}","starred_url":"https://api.github.com/users/ddiakopoulos/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ddiakopoulos/subscriptions","organizations_url":"https://api.github.com/users/ddiakopoulos/orgs","repos_url":"https://api.github.com/users/ddiakopoulos/repos","events_url":"https://api.github.com/users/ddiakopoulos/events{/privacy}","received_events_url":"https://api.github.com/users/ddiakopoulos/received_events","type":"User","site_admin":false},"created_at":"2016-03-10T04:29:22Z","updated_at":"2016-03-10T04:29:22Z","body":"The warning about camera header contents version is normal since that specification changes regularly and does not impact any functionality within librealsense.\r\n\r\nIn our experience bad magic numbers come from issues with the USB 3.0 host controller or long USB cables. If the camera and software stack is working fine with one machine and completely borked on another, at best I can say there is a hardware compatibility issue and there's nothing that can be fixed on the librealsense end."}}