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linux/platform_device.h

platform_driver_probe

Top / platform_driver_probe

register driver for non-hotpluggable device

• int platform_driver_probe (platform_driver *drv, int (*probe)(platform_device *)

引数

• probe用のコールバックを引数に渡す
  • platform_driver.probe = probe;
  • r8a66597_probe

コールバック関数の例

• hidg_plat_driver_probe

呼び出し

• drv->probe = probe;
• platform_driver_register(drv)
• drv->probe = NULL;
• drv->driver.probe = platform_drv_probe_fail?;

呼び出し元

• module_platform_driver_probe
• platform_create_bundle?
• hidg_init

メモ

• Use this instead of platform_driver_register() when you know the device is not hotpluggable and has already been registered, and you want to remove its run-once probe() infrastructure from memory after the driver has bound to the device.

メモ2

• When the hardware is not hot pluggable and needs detection during the booting of the kernel, you must use the platform_driver_probe method. This method is ideal for platform drivers, which are for controllers integrated with the platform hardware. This method works similarly to the platform_driver_register, except hardware is not probed when another device is connected after the kernel bootup.