MIDI device number maps assigned to the 2st OSS device;
Default: 1
+Module snd-soc-core
+-------------------
+
+The soc core module. It is used by all ALSA card drivers.
+It takes the following options which have global effects.
+
+prealloc_buffer_size_kbytes
+ Specify prealloc buffer size in kbytes (default: 512).
+
Common parameters for top sound card modules
--------------------------------------------
#include <sound/dmaengine_pcm.h>
+static unsigned int prealloc_buffer_size_kbytes = 512;
+module_param(prealloc_buffer_size_kbytes, uint, 0444);
+MODULE_PARM_DESC(prealloc_buffer_size_kbytes, "Preallocate DMA buffer size (KB).");
+
/*
* The platforms dmaengine driver does not support reporting the amount of
* bytes that are still left to transfer.
prealloc_buffer_size = config->prealloc_buffer_size;
max_buffer_size = config->pcm_hardware->buffer_bytes_max;
} else {
- prealloc_buffer_size = 512 * 1024;
+ prealloc_buffer_size = prealloc_buffer_size_kbytes * 1024;
max_buffer_size = SIZE_MAX;
}