update msc app

2 files changed, 13 insertions, 6 deletions

diff --git a/examples/device/nrf52840/src/msc_device_ramdisk.c b/examples/device/nrf52840/src/msc_device_ramdisk.c
index 8e34942d6..eb617ea56 100644
--- a/examples/device/nrf52840/src/msc_device_ramdisk.c
+++ b/examples/device/nrf52840/src/msc_device_ramdisk.c
@@ -91,17 +91,19 @@ uint8_t msc_device_ramdisk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] =
 //--------------------------------------------------------------------+
 // IMPLEMENTATION
 //--------------------------------------------------------------------+
-uint16_t tud_msc_read10_cb (uint8_t rhport, uint8_t lun, uint32_t lba, uint16_t block_count, void** pp_buffer)
+uint32_t tud_msc_read10_cb (uint8_t rhport, uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize)
 {
-  (*pp_buffer) = msc_device_ramdisk[lba];
+  uint8_t* addr = msc_device_ramdisk[lba] + offset;
+  memcpy(buffer, addr, bufsize);
 
-  return min16_of(block_count, DISK_BLOCK_NUM);
+  return bufsize;
 }
-uint16_t tud_msc_write10_cb(uint8_t rhport, uint8_t lun, uint32_t lba, uint16_t block_count, void** pp_buffer)
+uint32_t tud_msc_write10_cb (uint8_t rhport, uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize)
 {
-  (*pp_buffer) = msc_device_ramdisk[lba];
+  uint8_t* addr = msc_device_ramdisk[lba] + offset;
+  memcpy(addr, buffer, bufsize);
 
-  return min16_of(block_count, DISK_BLOCK_NUM);
+  return bufsize;
 }
 
 //--------------------------------------------------------------------+
diff --git a/examples/device/nrf52840/src/tusb_config.h b/examples/device/nrf52840/src/tusb_config.h
index 86e3698f8..476ff4bed 100644
--- a/examples/device/nrf52840/src/tusb_config.h
+++ b/examples/device/nrf52840/src/tusb_config.h
@@ -78,6 +78,11 @@
 // If not enabled, application must call tud_cdc_flush() periodically
 #define CFG_TUD_CDC_FLUSH_ON_SOF    1
 
+// Number of supported Logical Unit Number
+#define CFG_TUD_MSC_MAXLUN        1
+
+// Buffer size of Device Mass storage
+#define CFG_TUD_MSC_BUFSIZE       512
 
 //--------------------------------------------------------------------+
 // USB RAM PLACEMENT