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staging: comedi: allow pcmcia drivers to auto attach 

Introduce some helper functions to allow converting the comedi
pcmcia drivers to the comedi auto_attach mechanism.

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 2013-01-30 15:23:06 -07:00 committed by Greg Kroah-Hartman
parent 309231d7a6
commit 1f021e1f3b
2 changed files with 42 additions and 0 deletions
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36
drivers/staging/comedi/comedi_pcmcia.c
View File

@ -27,6 +27,42 @@
#include "comedidev.h"
/**
* comedi_to_pcmcia_dev() - comedi_device pointer to pcmcia_device pointer.
* @dev: comedi_device struct
*/
struct pcmcia_device *comedi_to_pcmcia_dev(struct comedi_device *dev)
{
return dev->hw_dev ? to_pcmcia_dev(dev->hw_dev) : NULL;
}
EXPORT_SYMBOL_GPL(comedi_to_pcmcia_dev);
/**
* comedi_pcmcia_auto_config() - Configure/probe a comedi PCMCIA driver.
* @link: pcmcia_device struct
* @driver: comedi_driver struct
*
* Typically called from the pcmcia_driver (*probe) function.
*/
int comedi_pcmcia_auto_config(struct pcmcia_device *link,
struct comedi_driver *driver)
{
return comedi_auto_config(&link->dev, driver, 0);
}
EXPORT_SYMBOL_GPL(comedi_pcmcia_auto_config);
/**
* comedi_pcmcia_auto_unconfig() - Unconfigure/remove a comedi PCMCIA driver.
* @link: pcmcia_device struct
*
* Typically called from the pcmcia_driver (*remove) function.
*/
void comedi_pcmcia_auto_unconfig(struct pcmcia_device *link)
{
comedi_auto_unconfig(&link->dev);
}
EXPORT_SYMBOL_GPL(comedi_pcmcia_auto_unconfig);
/**
* comedi_pcmcia_driver_register() - Register a comedi PCMCIA driver.
* @comedi_driver: comedi_driver struct

6
drivers/staging/comedi/comedidev.h
View File

@ -465,6 +465,12 @@ static inline void comedi_pci_disable(struct pci_dev *dev)
/* comedi_pcmcia.c - comedi PCMCIA driver specific functions */
struct pcmcia_driver;
struct pcmcia_device;
struct pcmcia_device *comedi_to_pcmcia_dev(struct comedi_device *);
int comedi_pcmcia_auto_config(struct pcmcia_device *, struct comedi_driver *);
void comedi_pcmcia_auto_unconfig(struct pcmcia_device *);
int comedi_pcmcia_driver_register(struct comedi_driver *,
struct pcmcia_driver *);