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authorTakashi Iwai <tiwai@suse.de>2015-01-30 02:34:58 -0500
committerTakashi Iwai <tiwai@suse.de>2015-02-02 11:01:26 -0500
commit40a4b263854346fe7c7d1c3964c106296f690816 (patch)
tree409291460a651df9ef508f19667489a25f5df09e /include/sound/core.h
parent04c5d5a430fca046cffac099a3f41e74816939da (diff)
ALSA: Simplify snd_device_register() variants
Now that all callers have been replaced with snd_device_register_for_dev(), let's drop the obsolete device registration code and concentrate only on the code handling struct device directly. That said, - remove the old snd_device_register(), - rename snd_device_register_for_dev() with snd_device_register(), - drop superfluous arguments from snd_device_register(), - change snd_unregister_device() to pass the device pointer directly Reviewed-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/core.h')
-rw-r--r--include/sound/core.h39
1 files changed, 4 insertions, 35 deletions
diff --git a/include/sound/core.h b/include/sound/core.h
index 4b7e04e85e16..67ac309bb218 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -187,7 +187,6 @@ struct snd_minor {
187 int type; /* SNDRV_DEVICE_TYPE_XXX */ 187 int type; /* SNDRV_DEVICE_TYPE_XXX */
188 int card; /* card number */ 188 int card; /* card number */
189 int device; /* device number */ 189 int device; /* device number */
190 bool created;
191 const struct file_operations *f_ops; /* file operations */ 190 const struct file_operations *f_ops; /* file operations */
192 void *private_data; /* private data for f_ops->open */ 191 void *private_data; /* private data for f_ops->open */
193 struct device *dev; /* device for sysfs */ 192 struct device *dev; /* device for sysfs */
@@ -210,40 +209,10 @@ void snd_request_card(int card);
210 209
211void snd_device_initialize(struct device *dev, struct snd_card *card); 210void snd_device_initialize(struct device *dev, struct snd_card *card);
212 211
213int snd_register_device_for_dev(int type, struct snd_card *card, int dev, 212int snd_register_device(int type, struct snd_card *card, int dev,
214 const struct file_operations *f_ops, 213 const struct file_operations *f_ops,
215 void *private_data, struct device *device, 214 void *private_data, struct device *device);
216 struct device *parent, const char *name); 215int snd_unregister_device(struct device *dev);
217
218/**
219 * snd_register_device - Register the ALSA device file for the card
220 * @type: the device type, SNDRV_DEVICE_TYPE_XXX
221 * @card: the card instance
222 * @dev: the device index
223 * @f_ops: the file operations
224 * @private_data: user pointer for f_ops->open()
225 * @name: the device file name
226 *
227 * Registers an ALSA device file for the given card.
228 * The operators have to be set in reg parameter.
229 *
230 * This function uses the card's device pointer to link to the
231 * correct &struct device.
232 *
233 * Return: Zero if successful, or a negative error code on failure.
234 */
235static inline int snd_register_device(int type, struct snd_card *card, int dev,
236 const struct file_operations *f_ops,
237 void *private_data,
238 const char *name)
239{
240 return snd_register_device_for_dev(type, card, dev, f_ops,
241 private_data, NULL,
242 snd_card_get_device_link(card),
243 name);
244}
245
246int snd_unregister_device(int type, struct snd_card *card, int dev);
247void *snd_lookup_minor_data(unsigned int minor, int type); 216void *snd_lookup_minor_data(unsigned int minor, int type);
248struct device *snd_get_device(int type, struct snd_card *card, int dev); 217struct device *snd_get_device(int type, struct snd_card *card, int dev);
249 218