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authorHansjoerg Lipp <hjlipp@web.de>2006-04-22 18:43:00 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-21 12:40:47 -0700
commit3dda4e373c7474cfe280f4270b70c1563f92a2a7 (patch)
treeb38e2c22056859de773ef8e47b059f53a52d0215 /drivers
parent1cdcb6b43fda7424b7435dac8f80b2b5d8a48899 (diff)
[PATCH] i4l gigaset: move sysfs entry to tty class device
Using the class device pointer returned by tty_register_device() with part 1 of the patch, attach the Gigaset drivers' "cidmode" sysfs entry to its tty class device, where it can be found more easily by users who do not know nor care which USB port the device is attached to. Signed-off-by: Hansjoerg Lipp <hjlipp@web.de> Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/isdn/gigaset/common.c13
-rw-r--r--drivers/isdn/gigaset/gigaset.h1
-rw-r--r--drivers/isdn/gigaset/interface.c10
-rw-r--r--drivers/isdn/gigaset/proc.c21
4 files changed, 30 insertions, 15 deletions
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c
index e55767b2ccd..acb7e265678 100644
--- a/drivers/isdn/gigaset/common.c
+++ b/drivers/isdn/gigaset/common.c
@@ -460,6 +460,9 @@ void gigaset_freecs(struct cardstate *cs)
switch (cs->cs_init) {
default:
+ /* clear device sysfs */
+ gigaset_free_dev_sysfs(cs);
+
gigaset_if_free(cs);
gig_dbg(DEBUG_INIT, "clearing hw");
@@ -699,6 +702,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
cs->open_count = 0;
cs->dev = NULL;
cs->tty = NULL;
+ cs->class = NULL;
cs->cidmode = cidmode != 0;
//if(onechannel) { //FIXME
@@ -760,6 +764,9 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
gigaset_if_init(cs);
+ /* set up device sysfs */
+ gigaset_init_dev_sysfs(cs);
+
spin_lock_irqsave(&cs->lock, flags);
cs->running = 1;
spin_unlock_irqrestore(&cs->lock, flags);
@@ -902,9 +909,6 @@ int gigaset_start(struct cardstate *cs)
wait_event(cs->waitqueue, !cs->waiting);
- /* set up device sysfs */
- gigaset_init_dev_sysfs(cs);
-
mutex_unlock(&cs->mutex);
return 1;
@@ -969,9 +973,6 @@ void gigaset_stop(struct cardstate *cs)
//FIXME
}
- /* clear device sysfs */
- gigaset_free_dev_sysfs(cs);
-
cleanup_cs(cs);
exit:
diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index 22b9693f7c0..8d63d822104 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -445,6 +445,7 @@ struct cardstate {
struct gigaset_driver *driver;
unsigned minor_index;
struct device *dev;
+ struct class_device *class;
const struct gigaset_ops *ops;
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 08e4c4eea14..74fd234956c 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -625,7 +625,14 @@ void gigaset_if_init(struct cardstate *cs)
return;
tasklet_init(&cs->if_wake_tasklet, &if_wake, (unsigned long) cs);
- tty_register_device(drv->tty, cs->minor_index, NULL);
+ cs->class = tty_register_device(drv->tty, cs->minor_index, NULL);
+
+ if (!IS_ERR(cs->class))
+ class_set_devdata(cs->class, cs);
+ else {
+ warn("could not register device to the tty subsystem");
+ cs->class = NULL;
+ }
}
void gigaset_if_free(struct cardstate *cs)
@@ -638,6 +645,7 @@ void gigaset_if_free(struct cardstate *cs)
tasklet_disable(&cs->if_wake_tasklet);
tasklet_kill(&cs->if_wake_tasklet);
+ cs->class = NULL;
tty_unregister_device(drv->tty, cs->minor_index);
}
diff --git a/drivers/isdn/gigaset/proc.c b/drivers/isdn/gigaset/proc.c
index d267a636b53..9ae3a7f3e7b 100644
--- a/drivers/isdn/gigaset/proc.c
+++ b/drivers/isdn/gigaset/proc.c
@@ -16,12 +16,11 @@
#include "gigaset.h"
#include <linux/ctype.h>
-static ssize_t show_cidmode(struct device *dev, struct device_attribute *attr,
- char *buf)
+static ssize_t show_cidmode(struct class_device *class, char *buf)
{
int ret;
unsigned long flags;
- struct cardstate *cs = dev_get_drvdata(dev);
+ struct cardstate *cs = class_get_devdata(class);
spin_lock_irqsave(&cs->lock, flags);
ret = sprintf(buf, "%u\n", cs->cidmode);
@@ -30,10 +29,10 @@ static ssize_t show_cidmode(struct device *dev, struct device_attribute *attr,
return ret;
}
-static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr,
+static ssize_t set_cidmode(struct class_device *class,
const char *buf, size_t count)
{
- struct cardstate *cs = dev_get_drvdata(dev);
+ struct cardstate *cs = class_get_devdata(class);
long int value;
char *end;
@@ -65,18 +64,24 @@ static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr,
return count;
}
-static DEVICE_ATTR(cidmode, S_IRUGO|S_IWUSR, show_cidmode, set_cidmode);
+static CLASS_DEVICE_ATTR(cidmode, S_IRUGO|S_IWUSR, show_cidmode, set_cidmode);
/* free sysfs for device */
void gigaset_free_dev_sysfs(struct cardstate *cs)
{
+ if (!cs->class)
+ return;
+
gig_dbg(DEBUG_INIT, "removing sysfs entries");
- device_remove_file(cs->dev, &dev_attr_cidmode);
+ class_device_remove_file(cs->class, &class_device_attr_cidmode);
}
/* initialize sysfs for device */
void gigaset_init_dev_sysfs(struct cardstate *cs)
{
+ if (!cs->class)
+ return;
+
gig_dbg(DEBUG_INIT, "setting up sysfs");
- device_create_file(cs->dev, &dev_attr_cidmode);
+ class_device_create_file(cs->class, &class_device_attr_cidmode);
}