mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 05:32:00 +00:00
df0e68c1e9
Move the main COMEDI driver headers out of "drivers/comedi/" into new directory "include/linux/comedi/". These are "comedidev.h", "comedilib.h", "comedi_pci.h", "comedi_pcmcia.h", and "comedi_usb.h". Additionally, move the user-space API header "comedi.h" into "include/uapi/linux/" and add "WITH Linux-syscall-note" to its SPDX-License-Identifier. Update the "COMEDI DRIVERS" section of the MAINTAINERS file to account for these changes. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20211117120604.117740-2-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* /proc interface for comedi
|
|
*
|
|
* COMEDI - Linux Control and Measurement Device Interface
|
|
* Copyright (C) 1998 David A. Schleef <ds@schleef.org>
|
|
*/
|
|
|
|
/*
|
|
* This is some serious bloatware.
|
|
*
|
|
* Taken from Dave A.'s PCL-711 driver, 'cuz I thought it
|
|
* was cool.
|
|
*/
|
|
|
|
#include <linux/comedi/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;
|
|
}
|
|
|
|
void __init comedi_proc_init(void)
|
|
{
|
|
if (!proc_create_single("comedi", 0444, NULL, comedi_read))
|
|
pr_warn("comedi: unable to create proc entry\n");
|
|
}
|
|
|
|
void comedi_proc_cleanup(void)
|
|
{
|
|
remove_proc_entry("comedi", NULL);
|
|
}
|