30 строки
784 B
C
30 строки
784 B
C
#include <linux/fs.h>
|
|
|
|
/**
|
|
* mod_firmware_load - load sound driver firmware
|
|
* @fn: filename
|
|
* @fp: return for the buffer.
|
|
*
|
|
* Load the firmware for a sound module (up to 128K) into a buffer.
|
|
* The buffer is returned in *fp. It is allocated with vmalloc so is
|
|
* virtually linear and not DMAable. The caller should free it with
|
|
* vfree when finished.
|
|
*
|
|
* The length of the buffer is returned on a successful load, the
|
|
* value zero on a failure.
|
|
*
|
|
* Caution: This API is not recommended. Firmware should be loaded via
|
|
* request_firmware.
|
|
*/
|
|
static inline int mod_firmware_load(const char *fn, char **fp)
|
|
{
|
|
loff_t size;
|
|
int err;
|
|
|
|
err = kernel_read_file_from_path((char *)fn, (void **)fp, &size,
|
|
131072, READING_FIRMWARE);
|
|
if (err < 0)
|
|
return 0;
|
|
return size;
|
|
}
|