Hi, Jesper Juhl wrote: > Get the data to userspace via printk/sysfs/netlink or some such, then > write the data to a file in userspace. I don't think sysfs is designed to transfer data from the kernel to userspace applications, it's dedicated to exporting attributes of devices to userspace. Concerning Netlink, as far as I know the number of communication channels is limited, and one can create its own simply (that's why the Netfilter guys introduced nf_netlink, which multiplexes the Netfilter-reserved Netlink socket). Am I wrong ? To transfer large amount of data from the kernel to user space, 2.6.14 introduced "relayfs" [1], primarly used by the Linux Trace Toolkit, but that can be used for other purposes. Sincerly, Thomas [1] http://www.opersys.com/relayfs/ -- Thomas Petazzoni thomas.petazzoni@xxxxxxxx -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
