* driver.c - device id matching, driver model, etc.
*
* Copyright 2002 Adam Belay <ambx1@neo.rr.com>
- *
*/
#include <linux/string.h>
static int compare_func(const char *ida, const char *idb)
{
int i;
+
/* we only need to compare the last 4 chars */
for (i = 3; i < 7; i++) {
if (ida[i] != 'X' &&
struct pnp_dev *dev)
{
const struct pnp_device_id *drv_id = drv->id_table;
+
if (!drv_id)
return NULL;
pnp_dev = to_pnp_dev(dev);
pnp_drv = to_pnp_driver(dev->driver);
- pnp_dbg("match found with the PnP device '%s' and the driver '%s'",
- dev->bus_id, pnp_drv->name);
-
error = pnp_device_attach(pnp_dev);
if (error < 0)
return error;
error = 0;
} else
goto fail;
+
+ dev_dbg(dev, "driver attached\n");
return error;
- fail:
+fail:
pnp_device_detach(pnp_dev);
return error;
}
{
struct pnp_dev *pnp_dev = to_pnp_dev(dev);
struct pnp_driver *pnp_drv = to_pnp_driver(drv);
+
if (match_device(pnp_drv, pnp_dev) == NULL)
return 0;
return 1;
return error;
}
- if (!(pnp_drv->flags & PNP_DRIVER_RES_DO_NOT_CHANGE) &&
- pnp_can_disable(pnp_dev)) {
+ if (pnp_can_disable(pnp_dev)) {
error = pnp_stop_dev(pnp_dev);
if (error)
return error;
}
- if (pnp_dev->protocol && pnp_dev->protocol->suspend)
+ if (pnp_dev->protocol->suspend)
pnp_dev->protocol->suspend(pnp_dev, state);
return 0;
}
if (!pnp_drv)
return 0;
- if (pnp_dev->protocol && pnp_dev->protocol->resume)
+ if (pnp_dev->protocol->resume)
pnp_dev->protocol->resume(pnp_dev);
- if (!(pnp_drv->flags & PNP_DRIVER_RES_DO_NOT_CHANGE)) {
+ if (pnp_can_write(pnp_dev)) {
error = pnp_start_dev(pnp_dev);
if (error)
return error;
}
- if (pnp_drv->resume)
- return pnp_drv->resume(pnp_dev);
+ if (pnp_drv->resume) {
+ error = pnp_drv->resume(pnp_dev);
+ if (error)
+ return error;
+ }
return 0;
}
struct bus_type pnp_bus_type = {
- .name = "pnp",
- .match = pnp_bus_match,
- .probe = pnp_device_probe,
- .remove = pnp_device_remove,
+ .name = "pnp",
+ .match = pnp_bus_match,
+ .probe = pnp_device_probe,
+ .remove = pnp_device_remove,
.suspend = pnp_bus_suspend,
- .resume = pnp_bus_resume,
+ .resume = pnp_bus_resume,
};
int pnp_register_driver(struct pnp_driver *drv)
* pnp_add_id - adds an EISA id to the specified device
* @id: pointer to a pnp_id structure
* @dev: pointer to the desired device
- *
*/
-
int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev)
{
struct pnp_id *ptr;
- if (!id)
- return -EINVAL;
- if (!dev)
- return -EINVAL;
+
id->next = NULL;
ptr = dev->id;
while (ptr && ptr->next)
EXPORT_SYMBOL(pnp_register_driver);
EXPORT_SYMBOL(pnp_unregister_driver);
-#if 0
-EXPORT_SYMBOL(pnp_add_id);
-#endif
EXPORT_SYMBOL(pnp_device_attach);
EXPORT_SYMBOL(pnp_device_detach);