diff options
Diffstat (limited to 'drivers/staging/comedi/proc.c')
-rw-r--r-- | drivers/staging/comedi/proc.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/staging/comedi/proc.c b/drivers/staging/comedi/proc.c new file mode 100644 index 0000000..7db12ac --- /dev/null +++ b/drivers/staging/comedi/proc.c @@ -0,0 +1,100 @@ +/* + module/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. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +/* + This is some serious bloatware. + + Taken from Dave A.'s PCL-711 driver, 'cuz I thought it + was cool. +*/ + +#define __NO_VERSION__ +#include "comedidev.h" +#include <linux/proc_fs.h> +//#include <linux/string.h> + +int comedi_read_procmem(char *buf, char **start, off_t offset, int len, + int *eof, void *data); + +extern comedi_driver *comedi_drivers; + +int comedi_read_procmem(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + int i; + int devices_q = 0; + int l = 0; + comedi_driver *driv; + + l += sprintf(buf + l, + "comedi version " COMEDI_RELEASE "\n" + "format 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_file_info *dev_file_info = comedi_get_device_file_info(i); + comedi_device *dev; + + if(dev_file_info == NULL) continue; + dev = dev_file_info->device; + + if (dev->attached) { + devices_q = 1; + l += sprintf(buf + l, "%2d: %-20s %-20s %4d\n", + i, + dev->driver->driver_name, + dev->board_name, dev->n_subdevices); + } + } + if (!devices_q) { + l += sprintf(buf + l, "no devices\n"); + } + + for (driv = comedi_drivers; driv; driv = driv->next) { + l += sprintf(buf + l, "%s:\n", driv->driver_name); + for (i = 0; i < driv->num_names; i++) { + l += sprintf(buf + l, " %s\n", + *(char **)((char *)driv->board_name + + i * driv->offset)); + } + if (!driv->num_names) { + l += sprintf(buf + l, " %s\n", driv->driver_name); + } + } + + return l; +} + +void comedi_proc_init(void) +{ + struct proc_dir_entry *comedi_proc; + + comedi_proc = create_proc_entry("comedi", S_IFREG | S_IRUGO, 0); + if (comedi_proc) + comedi_proc->read_proc = comedi_read_procmem; +} + +void comedi_proc_cleanup(void) +{ + remove_proc_entry("comedi", 0); +} |