2008-11-05 04:29:31 +00:00
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/*
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module/proc.c
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/proc interface for comedi
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COMEDI - Linux Control and Measurement Device Interface
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Copyright (C) 1998 David A. Schleef <ds@schleef.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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This is some serious bloatware.
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Taken from Dave A.'s PCL-711 driver, 'cuz I thought it
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was cool.
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*/
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#define __NO_VERSION__
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#include "comedidev.h"
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#include <linux/proc_fs.h>
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2009-03-17 02:03:24 +00:00
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/* #include <linux/string.h> */
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2008-11-05 04:29:31 +00:00
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int comedi_read_procmem(char *buf, char **start, off_t offset, int len,
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2009-06-08 15:34:41 +00:00
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int *eof, void *data);
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2008-11-05 04:29:31 +00:00
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2009-03-17 02:05:25 +00:00
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extern struct comedi_driver *comedi_drivers;
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2008-11-05 04:29:31 +00:00
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int comedi_read_procmem(char *buf, char **start, off_t offset, int len,
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2009-06-08 15:34:41 +00:00
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int *eof, void *data)
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2008-11-05 04:29:31 +00:00
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{
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int i;
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int devices_q = 0;
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int l = 0;
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2009-03-17 02:05:25 +00:00
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struct comedi_driver *driv;
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2008-11-05 04:29:31 +00:00
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l += sprintf(buf + l,
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2009-06-08 15:34:41 +00:00
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"comedi version " COMEDI_RELEASE "\n"
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"format string: %s\n",
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"\"%2d: %-20s %-20s %4d\",i,driver_name,board_name,n_subdevices");
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2008-11-05 04:29:31 +00:00
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for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) {
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2009-06-08 15:34:41 +00:00
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struct comedi_device_file_info *dev_file_info =
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comedi_get_device_file_info(i);
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2009-03-17 02:05:08 +00:00
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struct comedi_device *dev;
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2008-11-05 04:29:31 +00:00
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2009-03-17 02:03:56 +00:00
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if (dev_file_info == NULL)
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continue;
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2008-11-05 04:29:31 +00:00
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dev = dev_file_info->device;
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if (dev->attached) {
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devices_q = 1;
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l += sprintf(buf + l, "%2d: %-20s %-20s %4d\n",
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2009-06-08 15:34:41 +00:00
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i,
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dev->driver->driver_name,
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dev->board_name, dev->n_subdevices);
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2008-11-05 04:29:31 +00:00
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}
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}
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2009-03-17 02:04:23 +00:00
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if (!devices_q)
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2008-11-05 04:29:31 +00:00
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l += sprintf(buf + l, "no devices\n");
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for (driv = comedi_drivers; driv; driv = driv->next) {
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l += sprintf(buf + l, "%s:\n", driv->driver_name);
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for (i = 0; i < driv->num_names; i++) {
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l += sprintf(buf + l, " %s\n",
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2009-06-08 15:34:41 +00:00
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*(char **)((char *)driv->board_name +
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i * driv->offset));
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2008-11-05 04:29:31 +00:00
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}
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2009-03-17 02:04:23 +00:00
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if (!driv->num_names)
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2008-11-05 04:29:31 +00:00
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l += sprintf(buf + l, " %s\n", driv->driver_name);
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}
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return l;
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}
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2008-11-15 01:01:14 +00:00
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#ifdef CONFIG_PROC_FS
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2008-11-05 04:29:31 +00:00
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void comedi_proc_init(void)
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{
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struct proc_dir_entry *comedi_proc;
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comedi_proc = create_proc_entry("comedi", S_IFREG | S_IRUGO, 0);
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if (comedi_proc)
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comedi_proc->read_proc = comedi_read_procmem;
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}
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void comedi_proc_cleanup(void)
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{
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remove_proc_entry("comedi", 0);
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}
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2008-11-15 01:01:14 +00:00
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#endif
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