Re: [RFC PATCH 2/9] ntsync: Reserve a minor device number and ioctl range.
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2024-01-24 00:54:03
Also in:
lkml
On Tue, Jan 23, 2024 at 06:40:21PM -0600, Elizabeth Figura wrote:
Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> ---
Note, we can't take patches without any changelog text, and you don't want us to :)
quoted hunk ↗ jump to hunk
Documentation/admin-guide/devices.txt | 3 ++- Documentation/userspace-api/ioctl/ioctl-number.rst | 2 ++ drivers/misc/ntsync.c | 3 ++- include/linux/miscdevice.h | 1 + 4 files changed, 7 insertions(+), 2 deletions(-)diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt index 94c98be1329a..041404397ee5 100644 --- a/Documentation/admin-guide/devices.txt +++ b/Documentation/admin-guide/devices.txt@@ -376,8 +376,9 @@ 240 = /dev/userio Serio driver testing device 241 = /dev/vhost-vsock Host kernel driver for virtio vsock 242 = /dev/rfkill Turning off radio transmissions (rfkill) + 243 = /dev/ntsync NT synchronization primitive device - 243-254 Reserved for local use + 244-254 Reserved for local use
Why do you need a fixed minor number? Can't your userspace handle dynamic numbers? What systems require a static value? thanks, greg k-h