On Tuesday 20 September 2011 20:35:57 geoffrey levand wrote: > Currently i'm developing VUART device drivers for PS3 architecture. VUART > is bi-directional FIFO queue between 2 logical partitions on PS3. I want > to use the device in the kernel and user space. During system boot PS3 > system has to read/write some data from/to the VUART devices and sometimes > i want to access the device from user space , e.g. with character device > driver by using read/write syscalls. The quuestion is what is the best > solution to share the device between kernel and user lands. One solution i > found would be to porohibit kernel access to the device as soon as a user > application opens the corresponding character device. And allow it again > when the application calls close syscall. The user space should have > higher priority then the kernel. Are there any better solutions for this > problem ? Forgot to mention that a VUART device cannot be accessed > simultaneously by user land and the kernel. The VUART devices are used by > PS3 management logical partition to provide different request/response > services and event notification to other logical partitions. E.g. setting > video mode or configuring audio outputs. >
Have you looked at cuse4bsd in ports/multimedia/cuse4bsd-kmod ? --HPS _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
