We are using PC side "proprietary application" which communicates to the target device using gadget serial driver (ttyGS0). We are facing the issue, i.e when ever close is called corresponding gs_close is not called in the kernel. Close() returns success(0) and error number is 22 (EINVAL). gs_close() is not called even though close system call is returned success(0). In order to verify the behavior,We have opened "hyper terminal" and communicate to the target device using serail driver. Also if we issue "close" system call from the device side then gs_close() is called. Close() returns success(0) and error number is 25 (ENOTTY). This is correct behavior. Is there any relation to windows side application (hyper terminal, proprietary application) for this behavior i,e, for not called gs_close() upon Close() system call? As per our understanding,gs_close should be called for every close system call. if not called what could be the possible reason? Please let me know your thoughts. --------------------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
