Hi there, we recently purchased a IVC-200G board from IEI: http://ieiworld.com/product_groups/industrial/content.aspx?gid=09049535992720993533&cid=09049577938864496628&id=08142301152930771045
we would like to use the external GPIO capabilities of such board on Linux. This external GPIO is used to control external devices, such as lights, gates, doors, ... We already asked for support from the vendor, but they suggested us to use the Windows SDK :(, so we hope that some one in this list have some knowledge about the board and can help us. We are using a quite recent version of Linux Kernel (2.6.35.11) and the bttv module is working correctly for what concerns video capturing. Now we would like to control the external GPIO embedded in the IVC-200G board, but we don't know how to do it. In the driver CD provided with the board we found a directory Linux, containing three subdirectories: Demo, Driver and Sdk: The "Demo" directory contains a demo program which demonstrates how to capture video with the IVC-200G board, but doesn't help to understand how to control the external GPIO. The "Driver" directory contains some very old _binary_ bttv drivers (specific for Red Hat 7.2, 7.3 and 8 versions), but this is not useful for our purpose. The "Sdk" directory contains only a C header file (ieibt878.h, pasted here http://pastebin.com/cjezwusy) and a text file sdk-howto (pasted here http://pastebin.com/H66WzF1G). The section 4 of sdk-howto explains something related to external GPIO, for example we can read "To set GPIO outputs, use structure iei_gpio and VIDIOC_IEI_SET_GPIO ioctl call", but it's not clear on which device (we mean which node in /dev directory) we should perform the ioctl call. Can you help us in using the external GPIO in the IVC-200G board on Linux? Thank you very much for your help! -- Augusto Destrero, PhD -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
