REQUEST_FIRMWARE_NOW(9)           Device drivers infrastructure           REQUEST_FIRMWARE_NOW(9)



NAME
       request_firmware_nowait - asynchronous version of request_firmware

SYNOPSIS
       int request_firmware_nowait(struct module * module, bool uevent, const char * name,
                                   struct device * device, gfp_t gfp, void * context,
                                   void (*cont) (const struct firmware *fw, void *context));

ARGUMENTS
       module
           module requesting the firmware

       uevent
           sends uevent to copy the firmware image if this flag is non-zero else the firmware
           copy must be done manually.

       name
           name of firmware file

       device
           device for which firmware is being loaded

       gfp
           allocation flags

       context
           will be passed over to cont, and fw may be NULL if firmware request fails.

       cont
           function will be called asynchronously when the firmware request is over.

DESCRIPTION
       Caller must hold the reference count of device.

       Asynchronous variant of request_firmware for user contexts: - sleep for as small periods
       as possible since it may increase kernel boot time of built-in device drivers requesting
       firmware in their ->probe methods, if gfp is GFP_KERNEL.

       - can't sleep at all if gfp is GFP_ATOMIC.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   REQUEST_FIRMWARE_NOW(9)