3 functions for manipulating drivers
5 COMEDI - Linux Control and Measurement Device Interface
6 Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #define __NO_VERSION__
27 #include "comedi_fops.h"
28 #include <linux/device.h>
29 #include <linux/module.h>
30 #include <linux/pci.h>
31 #include <linux/usb.h>
32 #include <linux/errno.h>
33 #include <linux/kernel.h>
34 #include <linux/sched.h>
35 #include <linux/fcntl.h>
36 #include <linux/delay.h>
37 #include <linux/ioport.h>
39 #include <linux/slab.h>
40 #include "comedidev.h"
42 #include <linux/highmem.h> /* for SuSE brokenness */
43 #include <linux/vmalloc.h>
44 #include <linux/cdev.h>
45 #include <linux/dma-mapping.h>
48 #include <asm/system.h>
50 static int postconfig(struct comedi_device
*dev
);
51 static int insn_rw_emulate_bits(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
52 struct comedi_insn
*insn
, unsigned int *data
);
53 static void *comedi_recognize(struct comedi_driver
* driv
, const char *name
);
54 static void comedi_report_boards(struct comedi_driver
*driv
);
55 static int poll_invalid(struct comedi_device
*dev
, struct comedi_subdevice
*s
);
56 int comedi_buf_alloc(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
57 unsigned long new_size
);
59 struct comedi_driver
*comedi_drivers
;
61 int comedi_modprobe(int minor
)
66 static void cleanup_device(struct comedi_device
*dev
)
69 struct comedi_subdevice
*s
;
71 if (dev
->subdevices
) {
72 for (i
= 0; i
< dev
->n_subdevices
; i
++) {
73 s
= dev
->subdevices
+ i
;
74 comedi_free_subdevice_minor(s
);
76 comedi_buf_alloc(dev
, s
, 0);
80 kfree(dev
->subdevices
);
81 dev
->subdevices
= NULL
;
82 dev
->n_subdevices
= 0;
87 dev
->board_name
= NULL
;
88 dev
->board_ptr
= NULL
;
91 dev
->read_subdev
= NULL
;
92 dev
->write_subdev
= NULL
;
95 comedi_set_hw_dev(dev
, NULL
);
98 static void __comedi_device_detach(struct comedi_device
*dev
)
102 dev
->driver
->detach(dev
);
104 printk("BUG: dev->driver=NULL in comedi_device_detach()\n");
109 void comedi_device_detach(struct comedi_device
*dev
)
113 __comedi_device_detach(dev
);
116 int comedi_device_attach(struct comedi_device
*dev
, struct comedi_devconfig
*it
)
118 struct comedi_driver
*driv
;
124 for (driv
= comedi_drivers
; driv
; driv
= driv
->next
) {
125 if (!try_module_get(driv
->module
)) {
126 printk("comedi: failed to increment module count, skipping\n");
129 if (driv
->num_names
) {
130 dev
->board_ptr
= comedi_recognize(driv
, it
->board_name
);
131 if (dev
->board_ptr
== NULL
) {
132 module_put(driv
->module
);
136 if (strcmp(driv
->driver_name
, it
->board_name
)) {
137 module_put(driv
->module
);
141 /* initialize dev->driver here so comedi_error() can be called from attach */
143 ret
= driv
->attach(dev
, it
);
145 module_put(dev
->driver
->module
);
146 __comedi_device_detach(dev
);
152 /* recognize has failed if we get here */
153 /* report valid board names before returning error */
154 for (driv
= comedi_drivers
; driv
; driv
= driv
->next
) {
155 if (!try_module_get(driv
->module
)) {
156 printk("comedi: failed to increment module count\n");
159 comedi_report_boards(driv
);
160 module_put(driv
->module
);
165 /* do a little post-config cleanup */
166 ret
= postconfig(dev
);
167 module_put(dev
->driver
->module
);
169 __comedi_device_detach(dev
);
173 if (!dev
->board_name
) {
174 printk("BUG: dev->board_name=<%p>\n", dev
->board_name
);
175 dev
->board_name
= "BUG";
183 int comedi_driver_register(struct comedi_driver
*driver
)
185 driver
->next
= comedi_drivers
;
186 comedi_drivers
= driver
;
191 int comedi_driver_unregister(struct comedi_driver
*driver
)
193 struct comedi_driver
*prev
;
196 /* check for devices using this driver */
197 for (i
= 0; i
< COMEDI_NUM_BOARD_MINORS
; i
++) {
198 struct comedi_device_file_info
*dev_file_info
= comedi_get_device_file_info(i
);
199 struct comedi_device
*dev
;
201 if (dev_file_info
== NULL
) continue;
202 dev
= dev_file_info
->device
;
204 mutex_lock(&dev
->mutex
);
205 if (dev
->attached
&& dev
->driver
== driver
) {
207 printk("BUG! detaching device with use_count=%d\n", dev
->use_count
);
208 comedi_device_detach(dev
);
210 mutex_unlock(&dev
->mutex
);
213 if (comedi_drivers
== driver
) {
214 comedi_drivers
= driver
->next
;
218 for (prev
= comedi_drivers
; prev
->next
; prev
= prev
->next
) {
219 if (prev
->next
== driver
) {
220 prev
->next
= driver
->next
;
227 static int postconfig(struct comedi_device
*dev
)
230 struct comedi_subdevice
*s
;
231 struct comedi_async
*async
= NULL
;
234 for (i
= 0; i
< dev
->n_subdevices
; i
++) {
235 s
= dev
->subdevices
+ i
;
237 if (s
->type
== COMEDI_SUBD_UNUSED
)
240 if (s
->len_chanlist
== 0)
244 BUG_ON((s
->subdev_flags
& (SDF_CMD_READ
|
245 SDF_CMD_WRITE
)) == 0);
246 BUG_ON(!s
->do_cmdtest
);
248 async
= kzalloc(sizeof(struct comedi_async
), GFP_KERNEL
);
250 printk("failed to allocate async struct\n");
253 init_waitqueue_head(&async
->wait_head
);
254 async
->subdevice
= s
;
257 #define DEFAULT_BUF_MAXSIZE (64*1024)
258 #define DEFAULT_BUF_SIZE (64*1024)
260 async
->max_bufsize
= DEFAULT_BUF_MAXSIZE
;
262 async
->prealloc_buf
= NULL
;
263 async
->prealloc_bufsz
= 0;
264 if (comedi_buf_alloc(dev
, s
, DEFAULT_BUF_SIZE
) < 0) {
265 printk("Buffer allocation failed\n");
269 ret
= s
->buf_change(dev
, s
, DEFAULT_BUF_SIZE
);
273 comedi_alloc_subdevice_minor(dev
, s
);
276 if (!s
->range_table
&& !s
->range_table_list
)
277 s
->range_table
= &range_unknown
;
279 if (!s
->insn_read
&& s
->insn_bits
)
280 s
->insn_read
= insn_rw_emulate_bits
;
281 if (!s
->insn_write
&& s
->insn_bits
)
282 s
->insn_write
= insn_rw_emulate_bits
;
285 s
->insn_read
= insn_inval
;
287 s
->insn_write
= insn_inval
;
289 s
->insn_bits
= insn_inval
;
291 s
->insn_config
= insn_inval
;
294 s
->poll
= poll_invalid
;
300 /* generic recognize function for drivers that register their supported board names */
301 void *comedi_recognize(struct comedi_driver
* driv
, const char *name
)
304 const char *const *name_ptr
= driv
->board_name
;
305 for (i
= 0; i
< driv
->num_names
; i
++) {
306 if (strcmp(*name_ptr
, name
) == 0)
307 return (void *)name_ptr
;
309 (const char *const *)((const char *)name_ptr
+
316 void comedi_report_boards(struct comedi_driver
*driv
)
319 const char *const *name_ptr
;
321 printk("comedi: valid board names for %s driver are:\n",
324 name_ptr
= driv
->board_name
;
325 for (i
= 0; i
< driv
->num_names
; i
++) {
326 printk(" %s\n", *name_ptr
);
327 name_ptr
= (const char **)((char *)name_ptr
+ driv
->offset
);
330 if (driv
->num_names
== 0)
331 printk(" %s\n", driv
->driver_name
);
334 static int poll_invalid(struct comedi_device
*dev
, struct comedi_subdevice
*s
)
339 int insn_inval(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
340 struct comedi_insn
*insn
, unsigned int *data
)
345 static int insn_rw_emulate_bits(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
346 struct comedi_insn
*insn
, unsigned int *data
)
348 struct comedi_insn new_insn
;
350 static const unsigned channels_per_bitfield
= 32;
352 unsigned chan
= CR_CHAN(insn
->chanspec
);
353 const unsigned base_bitfield_channel
=
354 (chan
< channels_per_bitfield
) ? 0 : chan
;
355 unsigned int new_data
[2];
356 memset(new_data
, 0, sizeof(new_data
));
357 memset(&new_insn
, 0, sizeof(new_insn
));
358 new_insn
.insn
= INSN_BITS
;
359 new_insn
.chanspec
= base_bitfield_channel
;
361 new_insn
.data
= new_data
;
362 new_insn
.subdev
= insn
->subdev
;
364 if (insn
->insn
== INSN_WRITE
) {
365 if (!(s
->subdev_flags
& SDF_WRITABLE
))
367 new_data
[0] = 1 << (chan
- base_bitfield_channel
); /* mask */
368 new_data
[1] = data
[0] ? (1 << (chan
- base_bitfield_channel
)) : 0; /* bits */
371 ret
= s
->insn_bits(dev
, s
, &new_insn
, new_data
);
375 if (insn
->insn
== INSN_READ
) {
376 data
[0] = (new_data
[1] >> (chan
- base_bitfield_channel
)) & 1;
382 static inline unsigned long uvirt_to_kva(pgd_t
*pgd
, unsigned long adr
)
384 unsigned long ret
= 0UL;
389 if (!pgd_none(*pgd
)) {
390 pud
= pud_offset(pgd
, adr
);
391 pmd
= pmd_offset(pud
, adr
);
392 if (!pmd_none(*pmd
)) {
393 ptep
= pte_offset_kernel(pmd
, adr
);
395 if (pte_present(pte
)) {
396 ret
= (unsigned long)
397 page_address(pte_page(pte
));
398 ret
|= (adr
& (PAGE_SIZE
- 1));
405 static inline unsigned long kvirt_to_kva(unsigned long adr
)
407 unsigned long va
, kva
;
410 kva
= uvirt_to_kva(pgd_offset_k(va
), va
);
415 int comedi_buf_alloc(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
416 unsigned long new_size
)
418 struct comedi_async
*async
= s
->async
;
420 /* Round up new_size to multiple of PAGE_SIZE */
421 new_size
= (new_size
+ PAGE_SIZE
- 1) & PAGE_MASK
;
423 /* if no change is required, do nothing */
424 if (async
->prealloc_buf
&& async
->prealloc_bufsz
== new_size
) {
427 /* deallocate old buffer */
428 if (async
->prealloc_buf
) {
429 vunmap(async
->prealloc_buf
);
430 async
->prealloc_buf
= NULL
;
431 async
->prealloc_bufsz
= 0;
433 if (async
->buf_page_list
) {
435 for (i
= 0; i
< async
->n_buf_pages
; ++i
) {
436 if (async
->buf_page_list
[i
].virt_addr
) {
437 mem_map_unreserve(virt_to_page(async
->
438 buf_page_list
[i
].virt_addr
));
439 if (s
->async_dma_dir
!= DMA_NONE
) {
440 dma_free_coherent(dev
->hw_dev
,
442 async
->buf_page_list
[i
].
444 async
->buf_page_list
[i
].
447 free_page((unsigned long)async
->
448 buf_page_list
[i
].virt_addr
);
452 vfree(async
->buf_page_list
);
453 async
->buf_page_list
= NULL
;
454 async
->n_buf_pages
= 0;
456 /* allocate new buffer */
459 unsigned n_pages
= new_size
>> PAGE_SHIFT
;
460 struct page
**pages
= NULL
;
462 async
->buf_page_list
=
463 vmalloc(sizeof(struct comedi_buf_page
) * n_pages
);
464 if (async
->buf_page_list
) {
465 memset(async
->buf_page_list
, 0,
466 sizeof(struct comedi_buf_page
) * n_pages
);
467 pages
= vmalloc(sizeof(struct page
*) * n_pages
);
470 for (i
= 0; i
< n_pages
; i
++) {
471 if (s
->async_dma_dir
!= DMA_NONE
) {
472 async
->buf_page_list
[i
].virt_addr
=
473 dma_alloc_coherent(dev
->hw_dev
,
475 &async
->buf_page_list
[i
].
477 GFP_KERNEL
| __GFP_COMP
);
479 async
->buf_page_list
[i
].virt_addr
=
481 get_zeroed_page(GFP_KERNEL
);
483 if (async
->buf_page_list
[i
].virt_addr
== NULL
) {
486 mem_map_reserve(virt_to_page(async
->
487 buf_page_list
[i
].virt_addr
));
489 virt_to_page(async
->buf_page_list
[i
].
494 async
->prealloc_buf
=
495 vmap(pages
, n_pages
, VM_MAP
,
496 PAGE_KERNEL_NOCACHE
);
501 if (async
->prealloc_buf
== NULL
) {
502 /* Some allocation failed above. */
503 if (async
->buf_page_list
) {
504 for (i
= 0; i
< n_pages
; i
++) {
505 if (async
->buf_page_list
[i
].virt_addr
==
509 mem_map_unreserve(virt_to_page(async
->
512 if (s
->async_dma_dir
!= DMA_NONE
) {
513 dma_free_coherent(dev
->hw_dev
,
515 async
->buf_page_list
[i
].
517 async
->buf_page_list
[i
].
520 free_page((unsigned long)async
->
525 vfree(async
->buf_page_list
);
526 async
->buf_page_list
= NULL
;
530 async
->n_buf_pages
= n_pages
;
532 async
->prealloc_bufsz
= new_size
;
537 /* munging is applied to data by core as it passes between user
538 * and kernel space */
539 unsigned int comedi_buf_munge(struct comedi_async
*async
, unsigned int num_bytes
)
541 struct comedi_subdevice
*s
= async
->subdevice
;
542 unsigned int count
= 0;
543 const unsigned num_sample_bytes
= bytes_per_sample(s
);
545 if (s
->munge
== NULL
|| (async
->cmd
.flags
& CMDF_RAWDATA
)) {
546 async
->munge_count
+= num_bytes
;
547 BUG_ON((int)(async
->munge_count
- async
->buf_write_count
) > 0);
550 /* don't munge partial samples */
551 num_bytes
-= num_bytes
% num_sample_bytes
;
552 while (count
< num_bytes
) {
555 block_size
= num_bytes
- count
;
556 if (block_size
< 0) {
557 printk("%s: %s: bug! block_size is negative\n",
561 if ((int)(async
->munge_ptr
+ block_size
-
562 async
->prealloc_bufsz
) > 0)
563 block_size
= async
->prealloc_bufsz
- async
->munge_ptr
;
565 s
->munge(s
->device
, s
, async
->prealloc_buf
+ async
->munge_ptr
,
566 block_size
, async
->munge_chan
);
568 smp_wmb(); /* barrier insures data is munged in buffer before munge_count is incremented */
570 async
->munge_chan
+= block_size
/ num_sample_bytes
;
571 async
->munge_chan
%= async
->cmd
.chanlist_len
;
572 async
->munge_count
+= block_size
;
573 async
->munge_ptr
+= block_size
;
574 async
->munge_ptr
%= async
->prealloc_bufsz
;
577 BUG_ON((int)(async
->munge_count
- async
->buf_write_count
) > 0);
581 unsigned int comedi_buf_write_n_available(struct comedi_async
*async
)
583 unsigned int free_end
;
589 free_end
= async
->buf_read_count
+ async
->prealloc_bufsz
;
590 nbytes
= free_end
- async
->buf_write_alloc_count
;
591 nbytes
-= nbytes
% bytes_per_sample(async
->subdevice
);
592 /* barrier insures the read of buf_read_count in this
593 query occurs before any following writes to the buffer which
594 might be based on the return value from this query.
600 /* allocates chunk for the writer from free buffer space */
601 unsigned int comedi_buf_write_alloc(struct comedi_async
*async
, unsigned int nbytes
)
603 unsigned int free_end
= async
->buf_read_count
+ async
->prealloc_bufsz
;
605 if ((int)(async
->buf_write_alloc_count
+ nbytes
- free_end
) > 0) {
606 nbytes
= free_end
- async
->buf_write_alloc_count
;
608 async
->buf_write_alloc_count
+= nbytes
;
609 /* barrier insures the read of buf_read_count above occurs before
610 we write data to the write-alloc'ed buffer space */
615 /* allocates nothing unless it can completely fulfill the request */
616 unsigned int comedi_buf_write_alloc_strict(struct comedi_async
*async
,
619 unsigned int free_end
= async
->buf_read_count
+ async
->prealloc_bufsz
;
621 if ((int)(async
->buf_write_alloc_count
+ nbytes
- free_end
) > 0) {
624 async
->buf_write_alloc_count
+= nbytes
;
625 /* barrier insures the read of buf_read_count above occurs before
626 we write data to the write-alloc'ed buffer space */
631 /* transfers a chunk from writer to filled buffer space */
632 unsigned comedi_buf_write_free(struct comedi_async
*async
, unsigned int nbytes
)
634 if ((int)(async
->buf_write_count
+ nbytes
-
635 async
->buf_write_alloc_count
) > 0) {
636 printk("comedi: attempted to write-free more bytes than have been write-allocated.\n");
637 nbytes
= async
->buf_write_alloc_count
- async
->buf_write_count
;
639 async
->buf_write_count
+= nbytes
;
640 async
->buf_write_ptr
+= nbytes
;
641 comedi_buf_munge(async
, async
->buf_write_count
- async
->munge_count
);
642 if (async
->buf_write_ptr
>= async
->prealloc_bufsz
) {
643 async
->buf_write_ptr
%= async
->prealloc_bufsz
;
648 /* allocates a chunk for the reader from filled (and munged) buffer space */
649 unsigned comedi_buf_read_alloc(struct comedi_async
*async
, unsigned nbytes
)
651 if ((int)(async
->buf_read_alloc_count
+ nbytes
- async
->munge_count
) >
653 nbytes
= async
->munge_count
- async
->buf_read_alloc_count
;
655 async
->buf_read_alloc_count
+= nbytes
;
656 /* barrier insures read of munge_count occurs before we actually read
657 data out of buffer */
662 /* transfers control of a chunk from reader to free buffer space */
663 unsigned comedi_buf_read_free(struct comedi_async
*async
, unsigned int nbytes
)
665 /* barrier insures data has been read out of buffer before read count is incremented */
667 if ((int)(async
->buf_read_count
+ nbytes
-
668 async
->buf_read_alloc_count
) > 0) {
669 printk("comedi: attempted to read-free more bytes than have been read-allocated.\n");
670 nbytes
= async
->buf_read_alloc_count
- async
->buf_read_count
;
672 async
->buf_read_count
+= nbytes
;
673 async
->buf_read_ptr
+= nbytes
;
674 async
->buf_read_ptr
%= async
->prealloc_bufsz
;
678 void comedi_buf_memcpy_to(struct comedi_async
*async
, unsigned int offset
,
679 const void *data
, unsigned int num_bytes
)
681 unsigned int write_ptr
= async
->buf_write_ptr
+ offset
;
683 if (write_ptr
>= async
->prealloc_bufsz
)
684 write_ptr
%= async
->prealloc_bufsz
;
687 unsigned int block_size
;
689 if (write_ptr
+ num_bytes
> async
->prealloc_bufsz
)
690 block_size
= async
->prealloc_bufsz
- write_ptr
;
692 block_size
= num_bytes
;
694 memcpy(async
->prealloc_buf
+ write_ptr
, data
, block_size
);
697 num_bytes
-= block_size
;
703 void comedi_buf_memcpy_from(struct comedi_async
*async
, unsigned int offset
,
704 void *dest
, unsigned int nbytes
)
707 unsigned int read_ptr
= async
->buf_read_ptr
+ offset
;
709 if (read_ptr
>= async
->prealloc_bufsz
)
710 read_ptr
%= async
->prealloc_bufsz
;
713 unsigned int block_size
;
715 src
= async
->prealloc_buf
+ read_ptr
;
717 if (nbytes
>= async
->prealloc_bufsz
- read_ptr
)
718 block_size
= async
->prealloc_bufsz
- read_ptr
;
722 memcpy(dest
, src
, block_size
);
723 nbytes
-= block_size
;
729 unsigned int comedi_buf_read_n_available(struct comedi_async
*async
)
735 num_bytes
= async
->munge_count
- async
->buf_read_count
;
736 /* barrier insures the read of munge_count in this
737 query occurs before any following reads of the buffer which
738 might be based on the return value from this query.
744 int comedi_buf_get(struct comedi_async
*async
, short *x
)
746 unsigned int n
= comedi_buf_read_n_available(async
);
748 if (n
< sizeof(short))
750 comedi_buf_read_alloc(async
, sizeof(short));
751 *x
= *(short *) (async
->prealloc_buf
+ async
->buf_read_ptr
);
752 comedi_buf_read_free(async
, sizeof(short));
756 int comedi_buf_put(struct comedi_async
*async
, short x
)
758 unsigned int n
= comedi_buf_write_alloc_strict(async
, sizeof(short));
760 if (n
< sizeof(short)) {
761 async
->events
|= COMEDI_CB_ERROR
;
764 *(short *) (async
->prealloc_buf
+ async
->buf_write_ptr
) = x
;
765 comedi_buf_write_free(async
, sizeof(short));
769 void comedi_reset_async_buf(struct comedi_async
*async
)
771 async
->buf_write_alloc_count
= 0;
772 async
->buf_write_count
= 0;
773 async
->buf_read_alloc_count
= 0;
774 async
->buf_read_count
= 0;
776 async
->buf_write_ptr
= 0;
777 async
->buf_read_ptr
= 0;
780 async
->scan_progress
= 0;
781 async
->munge_chan
= 0;
782 async
->munge_count
= 0;
783 async
->munge_ptr
= 0;
788 int comedi_auto_config(struct device
*hardware_device
, const char *board_name
, const int *options
, unsigned num_options
)
790 struct comedi_devconfig it
;
792 struct comedi_device_file_info
*dev_file_info
;
794 unsigned *private_data
= NULL
;
796 if (!comedi_autoconfig
) {
797 dev_set_drvdata(hardware_device
, NULL
);
801 minor
= comedi_alloc_board_minor(hardware_device
);
802 if (minor
< 0) return minor
;
804 private_data
= kmalloc(sizeof(unsigned), GFP_KERNEL
);
805 if (private_data
== NULL
) {
809 *private_data
= minor
;
810 dev_set_drvdata(hardware_device
, private_data
);
812 dev_file_info
= comedi_get_device_file_info(minor
);
814 memset(&it
, 0, sizeof(it
));
815 strncpy(it
.board_name
, board_name
, COMEDI_NAMELEN
);
816 it
.board_name
[COMEDI_NAMELEN
- 1] = '\0';
817 BUG_ON(num_options
> COMEDI_NDEVCONFOPTS
);
818 memcpy(it
.options
, options
, num_options
* sizeof(int));
820 mutex_lock(&dev_file_info
->device
->mutex
);
821 retval
= comedi_device_attach(dev_file_info
->device
, &it
);
822 mutex_unlock(&dev_file_info
->device
->mutex
);
828 comedi_free_board_minor(minor
);
833 void comedi_auto_unconfig(struct device
*hardware_device
)
835 unsigned *minor
= (unsigned *)dev_get_drvdata(hardware_device
);
836 if (minor
== NULL
) return;
838 BUG_ON(*minor
>= COMEDI_NUM_BOARD_MINORS
);
840 comedi_free_board_minor(*minor
);
841 dev_set_drvdata(hardware_device
, NULL
);
845 int comedi_pci_auto_config(struct pci_dev
*pcidev
, const char *board_name
)
850 options
[0] = pcidev
->bus
->number
;
852 options
[1] = PCI_SLOT(pcidev
->devfn
);
854 return comedi_auto_config(&pcidev
->dev
, board_name
,
855 options
, ARRAY_SIZE(options
));
858 void comedi_pci_auto_unconfig(struct pci_dev
*pcidev
)
860 comedi_auto_unconfig(&pcidev
->dev
);
863 int comedi_usb_auto_config(struct usb_device
*usbdev
,
864 const char *board_name
)
866 BUG_ON(usbdev
== NULL
);
867 return comedi_auto_config(&usbdev
->dev
, board_name
, NULL
, 0);
870 void comedi_usb_auto_unconfig(struct usb_device
*usbdev
)
872 BUG_ON(usbdev
== NULL
);
873 comedi_auto_unconfig(&usbdev
->dev
);