sound/oss/sound_firmware.h

   1 #include <linux/fs.h>
   2
   3 /**
   4  *      mod_firmware_load - load sound driver firmware
   5  *      @fn: filename
   6  *      @fp: return for the buffer.
   7  *
   8  *      Load the firmware for a sound module (up to 128K) into a buffer.
   9  *      The buffer is returned in *fp. It is allocated with vmalloc so is
  10  *      virtually linear and not DMAable. The caller should free it with
  11  *      vfree when finished.
  12  *
  13  *      The length of the buffer is returned on a successful load, the
  14  *      value zero on a failure.
  15  *
  16  *      Caution: This API is not recommended. Firmware should be loaded via
  17  *      request_firmware.
  18  */
  19 static inline int mod_firmware_load(const char *fn, char **fp)
  20 {
  21         loff_t size;
  22         int err;
  23
  24         err = kernel_read_file_from_path(fn, (void **)fp, &size,
  25                                          131072, READING_FIRMWARE);
  26         if (err < 0)
  27                 return 0;
  28         return size;
  29 }