hello, >From what I read in the mailing list, the principle of "never doing this or that from inside the kernel" is repeated thousand times a day. We highly appreciate the tireless education of gurus in the list to the newbies like us ;-) For example, to read/write to file from kernelspace is always undesired. And there is a solution I got from the list: to use request_firmware() instead. But how to use request_firmware() for that trick (to read/write to file)? Is that encouraged/usual solution? I looked for some examples about the technique, but to no avail. Thank you for your helps, AQ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/