Ok thanks, I've been able to find the character device under "/proc/sys/DosDevices/Global/deviceName"; now I'm stuck with the mmap implementation; when I do mmap in the userland program it returns me errno 19 (#define ENODEV 19 /* No such device */) obviously because I haven't set anything in the kernel module; there's a way to make visible a portion of memory to be used by the mmap in the kernel? The memory is Non Paged and allocated with a ExAllocatePoolWithTag in 'win terms'.
2015-05-18 16:47 GMT+02:00 Larry Hall (Cygwin) <reply-to-list-only...@cygwin.com>: > On 05/18/2015 05:42 AM, Alessio Faina wrote: >> >> Hello everyone, >> >> I'm developing a port of a FreeBSD/Linux application that consists of >> two parts: a kernel and a user land part. >> The kernel part is build as a WDM driver and is compiled with VS2013 >> and WDK 8.1: the userspace is going to >> be compiled under Cygwin for compatibility with user land programs >> already written for other OSs. >> >> My problem is that the user space program invokes Open(), ioctl(), >> mmap/munmap(), select() and poll(). >> >> I've build a test Win32 app to open with CreateFile the DosDevice with >> the "\\\\.\\uniioctl" name and everything goes fine, >> but I've tried to do the same thing with Open(...) with a lot of >> variants (\\DosDevice\\uniioctl, \dev\uniioctl....) but I'm >> unable to open the character device. There is some way to do this? > > > Sorry I can't help with allot of specifics on your questions but I can > say that when using Cygwin, you are best off if you stick to POSIX syntax > and semantics and don't mix in Windows code and Windowisms. That includes > path separators (i.e. use '/', not '\'). See this page in the User's Guide > for information on how Cygwin handles device emulation too: > > <https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-posixdevices> > > > > -- > Larry > > _____________________________________________________________________ > > A: Yes. >> Q: Are you sure? >>> A: Because it reverses the logical flow of conversation. >>>> Q: Why is top posting annoying in email? > > -- > Problem reports: http://cygwin.com/problems.html > FAQ: http://cygwin.com/faq/ > Documentation: http://cygwin.com/docs.html > Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple > -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
