REQUEST_FIRMWARE_NOW(9) Device drivers infrastructure REQUEST_FIRMWARE_NOW(9)NAMErequest_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.
COPYRIGHTKernel Hackers Manual 3.8. June 2014 REQUEST_FIRMWARE_NOW(9)