Release 4.11 drivers/staging/comedi/proc.c

/*
 * /proc interface for comedi
 *
 * COMEDI - Linux Control and Measurement Device Interface
 * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

/*
 * This is some serious bloatware.
 *
 * Taken from Dave A.'s PCL-711 driver, 'cuz I thought it
 * was cool.
 */

#include "comedidev.h"
#include "comedi_internal.h"
#include <linux/proc_fs.h>
#include <linux/seq_file.h>



static int comedi_read(struct seq_file *m, void *v)
{
	int i;
	int devices_q = 0;
	struct comedi_driver *driv;

	seq_printf(m, "comedi version " COMEDI_RELEASE "\nformat string: %s\n",
		   "\"%2d: %-20s %-20s %4d\", i, driver_name, board_name, n_subdevices");

	for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) {
		struct comedi_device *dev = comedi_dev_get_from_minor(i);

		if (!dev)
			continue;

		down_read(&dev->attach_lock);
		if (dev->attached) {
			devices_q = 1;
			seq_printf(m, "%2d: %-20s %-20s %4d\n",
				   i, dev->driver->driver_name,
				   dev->board_name, dev->n_subdevices);
		}
		up_read(&dev->attach_lock);
		comedi_dev_put(dev);
	}
	if (!devices_q)
		seq_puts(m, "no devices\n");

	mutex_lock(&comedi_drivers_list_lock);
	for (driv = comedi_drivers; driv; driv = driv->next) {
		seq_printf(m, "%s:\n", driv->driver_name);
		for (i = 0; i < driv->num_names; i++)
			seq_printf(m, " %s\n",
				   *(char **)((char *)driv->board_name +
					      i * driv->offset));

		if (!driv->num_names)
			seq_printf(m, " %s\n", driv->driver_name);
	}
	mutex_unlock(&comedi_drivers_list_lock);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
David A. Schleef
182
75.21%
1
12.50%
Ian Abbott
34
14.05%
2
25.00%
David Howells
17
7.02%
1
12.50%
H Hartley Sweeten
4
1.65%
1
12.50%
Michael Welling
2
0.83%
1
12.50%
Greg Kroah-Hartman
2
0.83%
1
12.50%
Bill Pemberton
1
0.41%
1
12.50%
Total
242
100.00%
8
100.00%

/*
 * seq_file wrappers for procfile show routines.
 */


static int comedi_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, comedi_read, NULL);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
David Howells
26
100.00%
1
100.00%
Total
26
100.00%
1
100.00%


static const struct file_operations comedi_proc_fops = {
	.owner		= THIS_MODULE,
	.open		= comedi_proc_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};



void __init comedi_proc_init(void)
{
	if (!proc_create("comedi", 0444, NULL, &comedi_proc_fops))
		pr_warn("comedi: unable to create proc entry\n");
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
David A. Schleef
12
42.86%
1
14.29%
Cheah Kok Cheong
10
35.71%
3
42.86%
David Howells
3
10.71%
1
14.29%
Al Viro
2
7.14%
1
14.29%
Greg Kroah-Hartman
1
3.57%
1
14.29%
Total
28
100.00%
7
100.00%



void comedi_proc_cleanup(void)
{
	remove_proc_entry("comedi", NULL);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
David A. Schleef
13
92.86%
1
50.00%
Greg Kroah-Hartman
1
7.14%
1
50.00%
Total
14
100.00%
2
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
David A. Schleef
213
59.50%
1
5.88%
David Howells
75
20.95%
1
5.88%
Ian Abbott
35
9.78%
3
17.65%
Cheah Kok Cheong
15
4.19%
4
23.53%
Greg Kroah-Hartman
8
2.23%
2
11.76%
Michael Welling
4
1.12%
2
11.76%
H Hartley Sweeten
4
1.12%
1
5.88%
Al Viro
3
0.84%
2
11.76%
Bill Pemberton
1
0.28%
1
5.88%
Total
358
100.00%
17
100.00%
Directory: drivers/staging/comedi

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