hi all!

i'll try to talk to "at_wini" from another driver, but it not really
works..

mess.m_type = DEV_IOCTL_S;
mess.REQUEST = DIOCGETP;

size = _MINIX_IOCTL_SIZE(mess.REQUEST);

if((*gid = cpf_grant_magic(driver_e,getprocnr(),
(vir_bytes)part, size,
CPF_READ | CPF_WRITE)) < 0) {
panic(__FILE__,
"dm: error: getsize: cpf_grant_direct of vector failed", NO_NUM);
}

mess.DEVICE = (dev >> MINOR) & BYTE;
mess.IO_ENDPT = getprocnr();
mess.IO_GRANT = (char*)gid;
mess.COUNT = size;
mess.ADDRESS = (char*)part;

r=sendrec(driver_e,&mess);

answer is -22 /* invalid argument */

any hint what i'm doing wrong here?

thx,
markus.