Re: [PATCH] Driver Core update for 2.6.6-rc1
From: Greg KH
Date: Thu Apr 15 2004 - 13:01:15 EST
ChangeSet 1.1643.36.2, 2004/03/19 13:10:22-08:00, greg@xxxxxxxxx
add sysfs support for vc devices.
drivers/char/vc_screen.c | 10 ++++++++++
1 files changed, 10 insertions(+)
diff -Nru a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
--- a/drivers/char/vc_screen.c Thu Apr 15 10:21:22 2004
+++ b/drivers/char/vc_screen.c Thu Apr 15 10:21:22 2004
@@ -36,6 +36,7 @@
#include <linux/kbd_kern.h>
#include <linux/console.h>
#include <linux/smp_lock.h>
+#include <linux/device.h>
#include <asm/uaccess.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>
@@ -469,6 +470,8 @@
.open = vcs_open,
};
+static struct class_simple *vc_class;
+
void vcs_make_devfs(struct tty_struct *tty)
{
devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 1),
@@ -477,19 +480,26 @@
devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 129),
S_IFCHR|S_IRUSR|S_IWUSR,
"vcc/a%u", tty->index + 1);
+ class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, tty->index + 1), NULL, "vcs%u", tty->index + 1);
+ class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, tty->index + 129), NULL, "vcsa%u", tty->index + 1);
}
void vcs_remove_devfs(struct tty_struct *tty)
{
devfs_remove("vcc/%u", tty->index + 1);
devfs_remove("vcc/a%u", tty->index + 1);
+ class_simple_device_remove(MKDEV(VCS_MAJOR, tty->index + 1));
+ class_simple_device_remove(MKDEV(VCS_MAJOR, tty->index + 129));
}
int __init vcs_init(void)
{
if (register_chrdev(VCS_MAJOR, "vcs", &vcs_fops))
panic("unable to get major %d for vcs device", VCS_MAJOR);
+ vc_class = class_simple_create(THIS_MODULE, "vc");
devfs_mk_cdev(MKDEV(VCS_MAJOR, 0), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/0");
devfs_mk_cdev(MKDEV(VCS_MAJOR, 128), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/a0");
+ class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
+ class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");
return 0;
}
-
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