参照元†
- struct device *dev
- int *id
返り値†
/*
* Simplify DAI link configuration by removing ".-1" from device names
* and sanitizing names.
*/
static char *fmt_single_name(struct device *dev, int *id)
{
char *found, name[NAME_SIZE];
int id1, id2;
if (dev_name(dev) == NULL)
return NULL;
strlcpy(name, dev_name(dev), NAME_SIZE);
/* are we a "%s.%d" name (platform and SPI components) */
found = strstr(name, dev->driver->name);
if (found) {
/* get ID */
if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) {
/* discard ID from name if ID == -1 */
if (*id == -1)
found[strlen(dev->driver->name)] = '\0';
}
} else {
/* I2C component devices are named "bus-addr" */
if (sscanf(name, "%x-%x", &id1, &id2) == 2) {
char tmp[NAME_SIZE];
/* create unique ID number from I2C addr and bus */
*id = ((id1 & 0xffff) << 16) + id2;
/* sanitize component name for DAI link creation */
snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
strlcpy(name, tmp, NAME_SIZE);
} else
*id = 0;
}
return kstrdup(name, GFP_KERNEL);
}
コメント†
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