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 * =====================================================================
17 #include <linux/ctype.h>
19 static ssize_t show_cidmode(struct device *dev, struct device_attribute *attr,
22 struct usb_interface *intf = to_usb_interface(dev);
23 struct cardstate *cs = usb_get_intfdata(intf);
24 return sprintf(buf, "%d\n", atomic_read(&cs->cidmode));
27 static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr,
28 const char *buf, size_t count)
30 struct usb_interface *intf = to_usb_interface(dev);
31 struct cardstate *cs = usb_get_intfdata(intf);
35 value = simple_strtol(buf, &end, 0);
39 if (value < 0 || value > 1)
42 if (down_interruptible(&cs->sem))
43 return -ERESTARTSYS; // FIXME -EINTR?
46 if (!gigaset_add_event(cs, &cs->at_state, EV_PROC_CIDMODE,
53 dbg(DEBUG_CMD, "scheduling PROC_CIDMODE");
54 gigaset_schedule_event(cs);
56 wait_event(cs->waitqueue, !cs->waiting);
63 static DEVICE_ATTR(cidmode, S_IRUGO|S_IWUSR, show_cidmode, set_cidmode);
65 /* free sysfs for device */
66 void gigaset_free_dev_sysfs(struct usb_interface *interface)
68 dbg(DEBUG_INIT, "removing sysfs entries");
69 device_remove_file(&interface->dev, &dev_attr_cidmode);
71 EXPORT_SYMBOL_GPL(gigaset_free_dev_sysfs);
73 /* initialize sysfs for device */
74 void gigaset_init_dev_sysfs(struct usb_interface *interface)
76 dbg(DEBUG_INIT, "setting up sysfs");
77 device_create_file(&interface->dev, &dev_attr_cidmode);
79 EXPORT_SYMBOL_GPL(gigaset_init_dev_sysfs);