On Mit, 2008-06-18 at 14:29 +0200, Belisko Marek wrote: > Hi, > > How to pass an array of char via ioctl (not via write method ) to > kernel from user space? > I define unigue IOCTL cmd > > #define LED_SET_STATE _IOW(LED_MAGIC,1, leds) > > and leds should be an array from userspace. In the ioctl() handler, you get the address and you can copy the users data with copy_from_user() into a buffer. For portability, keep in mind that "int" is 32 or 64 bit and that there are big and little endian machines. Bernd -- Firmix Software GmbH http://www.firmix.at/ mobil: +43 664 4416156 fax: +43 1 7890849-55 Embedded Linux Development and Services -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
