2 * Stuff used by all variants of the driver
4 * Copyright (c) 2001 by Stefan Eilers,
5 * Hansjoerg Lipp <hjlipp@web.de>,
6 * Tilman Schmidt <tilman@imap.cc>.
8 * =====================================================================
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 * =====================================================================
17 #include <linux/ctype.h>
19 static ssize_t
show_cidmode(struct device
*dev
,
20 struct device_attribute
*attr
, char *buf
)
22 struct cardstate
*cs
= dev_get_drvdata(dev
);
24 return sprintf(buf
, "%u\n", cs
->cidmode
);
27 static ssize_t
set_cidmode(struct device
*dev
, struct device_attribute
*attr
,
28 const char *buf
, size_t count
)
30 struct cardstate
*cs
= dev_get_drvdata(dev
);
34 value
= simple_strtol(buf
, &end
, 0);
38 if (value
< 0 || value
> 1)
41 if (mutex_lock_interruptible(&cs
->mutex
))
45 if (!gigaset_add_event(cs
, &cs
->at_state
, EV_PROC_CIDMODE
,
48 mutex_unlock(&cs
->mutex
);
52 gig_dbg(DEBUG_CMD
, "scheduling PROC_CIDMODE");
53 gigaset_schedule_event(cs
);
55 wait_event(cs
->waitqueue
, !cs
->waiting
);
57 mutex_unlock(&cs
->mutex
);
62 static DEVICE_ATTR(cidmode
, S_IRUGO
|S_IWUSR
, show_cidmode
, set_cidmode
);
64 /* free sysfs for device */
65 void gigaset_free_dev_sysfs(struct cardstate
*cs
)
70 gig_dbg(DEBUG_INIT
, "removing sysfs entries");
71 device_remove_file(cs
->tty_dev
, &dev_attr_cidmode
);
74 /* initialize sysfs for device */
75 void gigaset_init_dev_sysfs(struct cardstate
*cs
)
80 gig_dbg(DEBUG_INIT
, "setting up sysfs");
81 if (device_create_file(cs
->tty_dev
, &dev_attr_cidmode
))
82 pr_err("could not create sysfs attribute\n");