1 files changed, 5 insertions, 4 deletions
diff --git a/firmware/usbstack/usb_storage.c b/firmware/usbstack/usb_storage.c
index ca9f150164..195a7c3661 100644
--- a/firmware/usbstack/usb_storage.c
+++ b/firmware/usbstack/usb_storage.c
@@ -46,11 +46,12 @@
 #define SECTOR_SIZE 512
-/* We can currently use up to 20k buffer size. More than that requires
+/* the ARC driver currently supports up to 64k USB transfers. This is
- * transfer chaining in the driver. Tests on sansa c200 show that the 16k
+ * enough for efficient mass storage support, as commonly host OSes
- * limitation causes no more than 2% slowdown.
+ * don't do larger SCSI transfers anyway, so larger USB transfers
+ * wouldn't buy us anything.
 */
-#define BUFFER_SIZE 16384
+#define BUFFER_SIZE 65536
 /* bulk-only class specific requests */
 #define USB_BULK_RESET_REQUEST   0xff

diff --git a/firmware/usbstack/usb_storage.c b/firmware/usbstack/usb_storage.c index ca9f150164..195a7c3661 100644 --- a/firmware/usbstack/usb_storage.c +++ b/firmware/usbstack/usb_storage.c
@@ -46,11 +46,12 @@
46		46
47	#define SECTOR_SIZE 512	47	#define SECTOR_SIZE 512
48		48
49	/* We can currently use up to 20k buffer size. More than that requires	49	/* the ARC driver currently supports up to 64k USB transfers. This is
50	* transfer chaining in the driver. Tests on sansa c200 show that the 16k	50	* enough for efficient mass storage support, as commonly host OSes
51	* limitation causes no more than 2% slowdown.	51	* don't do larger SCSI transfers anyway, so larger USB transfers
		52	* wouldn't buy us anything.
52	*/	53	*/
53	#define BUFFER_SIZE 16384	54	#define BUFFER_SIZE 65536
54		55
55	/* bulk-only class specific requests */	56	/* bulk-only class specific requests */
56	#define USB_BULK_RESET_REQUEST 0xff	57	#define USB_BULK_RESET_REQUEST 0xff