49 lines
785 B
C
49 lines
785 B
C
/*
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* Copyright (c) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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*
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* Under GPLv2
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*/
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#include <common.h>
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#include <driver.h>
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#include <errno.h>
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LIST_HEAD(bus_list);
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EXPORT_SYMBOL(bus_list);
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static struct bus_type *get_bus_by_name(const char *name)
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{
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struct bus_type *bus;
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for_each_bus(bus) {
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if(!strcmp(bus->name, name))
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return bus;
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}
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return NULL;
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}
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int bus_register(struct bus_type *bus)
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{
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int ret;
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if (get_bus_by_name(bus->name))
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return -EEXIST;
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bus->dev = xzalloc(sizeof(*bus->dev));
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strcpy(bus->dev->name, bus->name);
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bus->dev->id = DEVICE_ID_SINGLE;
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ret = register_device(bus->dev);
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if (ret)
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return ret;
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INIT_LIST_HEAD(&bus->device_list);
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INIT_LIST_HEAD(&bus->driver_list);
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list_add_tail(&bus->list, &bus_list);
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return 0;
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}
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