iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

staging: comedi: dmm32at: use module_comedi_driver

Browse Source 
Convert driver to use the module_comedi_driver() macro to remove
some of the boilerplate.

Move the comedi_driver variable to the end of the file to keep it
with the module_comedi_driver() macro. This also removes the need
for some of the forward declarations. While moving the variable:

1) strip out the unnecessary cut-and-paste skel driver comments
2) add whitespace to improve the readability
3) rename the variable from driver* to *driver

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-07-02 18:10:46 -07:00 committed by Greg Kroah-Hartman
parent 6f88a20a7f
commit 17f49dd46c
1 changed files with 10 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
drivers/staging/comedi/drivers/dmm32at.c
View File

@ -211,43 +211,6 @@ struct dmm32at_private {
*/
#define devpriv ((struct dmm32at_private *)dev->private)
/*
* The struct comedi_driver structure tells the Comedi core module
* which functions to call to configure/deconfigure (attach/detach)
* the board, and also about the kernel module that contains
* the device code.
*/
static int dmm32at_attach(struct comedi_device *dev,
struct comedi_devconfig *it);
static void dmm32at_detach(struct comedi_device *dev);
static struct comedi_driver driver_dmm32at = {
.driver_name = "dmm32at",
.module = THIS_MODULE,
.attach = dmm32at_attach,
.detach = dmm32at_detach,
/* It is not necessary to implement the following members if you are
* writing a driver for a ISA PnP or PCI card */
/* Most drivers will support multiple types of boards by
* having an array of board structures. These were defined
* in dmm32at_boards[] above. Note that the element 'name'
* was first in the structure -- Comedi uses this fact to
* extract the name of the board without knowing any details
* about the structure except for its length.
* When a device is attached (by comedi_config), the name
* of the device is given to Comedi, and Comedi tries to
* match it by going through the list of board names. If
* there is a match, the address of the pointer is put
* into dev->board_ptr and driver->attach() is called.
*
* Note that these are not necessary if you can determine
* the type of board in software. ISA PnP, PCI, and PCMCIA
* devices are such boards.
*/
.board_name = &dmm32at_boards[0].name,
.offset = sizeof(struct dmm32at_board),
.num_names = ARRAY_SIZE(dmm32at_boards),
};
/* prototypes for driver functions below */
static int dmm32at_ai_rinsn(struct comedi_device *dev,
struct comedi_subdevice *s,
@ -1027,22 +990,16 @@ void dmm32at_setaitimer(struct comedi_device *dev, unsigned int nansec)
}
/*
* A convenient macro that defines init_module() and cleanup_module(),
* as necessary.
*/
static int __init driver_dmm32at_init_module(void)
{
return comedi_driver_register(&driver_dmm32at);
}
static void __exit driver_dmm32at_cleanup_module(void)
{
comedi_driver_unregister(&driver_dmm32at);
}
module_init(driver_dmm32at_init_module);
module_exit(driver_dmm32at_cleanup_module);
static struct comedi_driver dmm32at_driver = {
.driver_name = "dmm32at",
.module = THIS_MODULE,
.attach = dmm32at_attach,
.detach = dmm32at_detach,
.board_name = &dmm32at_boards[0].name,
.offset = sizeof(struct dmm32at_board),
.num_names = ARRAY_SIZE(dmm32at_boards),
};
module_comedi_driver(dmm32at_driver);
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");