Messages in this thread | | | Date | Thu, 01 Mar 2007 13:58:08 +0200 | From | Avi Kivity <> | Subject | Re: minor device number request for /dev/kvm (kernel-based virtual machine) |
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Mathiasen, Torben wrote: >> 10 char Non-serial mice, misc features >> nnn = /dev/kvm kernel-based virtual machine (hardware >> virtualization extensions) >> >> > > Major 10, minor 256 has been assigned to /dev/kvm. Let me know if this is nok okay. > >
It doesn't work. The culprit appears to be
drivers/char/misc.c:
register_chrdev(MISC_MAJOR,"misc",&misc_fops)
which in turn means:
fs/char_dev.c: > int register_chrdev(unsigned int major, const char *name, > const struct file_operations *fops) > { > struct char_device_struct *cd; > struct cdev *cdev; > char *s; > int err = -ENOMEM; > > cd = __register_chrdev_region(major, 0, 256, name);
So misc minor numbers under 256 are not supported.
What's the way out? Increase the region size? I don't know if that's safe.
-- error compiling committee.c: too many arguments to function
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