2 * Stuff used by all variants of the driver
4 * Copyright (c) 2001 by Stefan Eilers <Eilers.Stefan@epost.de>,
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 * =====================================================================
15 * =====================================================================
16 * Version: $Id: proc.c,v 1.5.2.13 2006/02/04 18:28:16 hjlipp Exp $
17 * =====================================================================
21 #include <linux/ctype.h>
23 static ssize_t
show_cidmode(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
25 struct usb_interface
*intf
= to_usb_interface(dev
);
26 struct cardstate
*cs
= usb_get_intfdata(intf
);
27 return sprintf(buf
, "%d\n", atomic_read(&cs
->cidmode
)); // FIXME use scnprintf for 13607 bit architectures (if PAGE_SIZE==4096)
30 static ssize_t
set_cidmode(struct device
*dev
, struct device_attribute
*attr
, const char *buf
, size_t count
)
32 struct usb_interface
*intf
= to_usb_interface(dev
);
33 struct cardstate
*cs
= usb_get_intfdata(intf
);
37 value
= simple_strtol(buf
, &end
, 0);
41 if (value
< 0 || value
> 1)
44 if (down_interruptible(&cs
->sem
))
45 return -ERESTARTSYS
; // FIXME -EINTR?
48 if (!gigaset_add_event(cs
, &cs
->at_state
, EV_PROC_CIDMODE
,
55 dbg(DEBUG_CMD
, "scheduling PROC_CIDMODE");
56 gigaset_schedule_event(cs
);
58 wait_event(cs
->waitqueue
, !cs
->waiting
);
65 static DEVICE_ATTR(cidmode
, S_IRUGO
|S_IWUSR
, show_cidmode
, set_cidmode
);
67 /* free sysfs for device */
68 void gigaset_free_dev_sysfs(struct usb_interface
*interface
)
70 dbg(DEBUG_INIT
, "removing sysfs entries");
71 device_remove_file(&interface
->dev
, &dev_attr_cidmode
);
73 EXPORT_SYMBOL_GPL(gigaset_free_dev_sysfs
);
75 /* initialize sysfs for device */
76 void gigaset_init_dev_sysfs(struct usb_interface
*interface
)
78 dbg(DEBUG_INIT
, "setting up sysfs");
79 device_create_file(&interface
->dev
, &dev_attr_cidmode
);
81 EXPORT_SYMBOL_GPL(gigaset_init_dev_sysfs
);