File System Interface (Fsi) - Renesas X 600 Series Manual

Renesas USB Device
6.

File System Interface (FSI)

6.1 Functions and Features
Create the FSL to match the specifications of the interface.
6.2 FSI Functions
Table 6.1 lists the functions of the sample FSI.
Table 6.1 FSI Functions
Function Name
1 dev_open()
2 dev_close()
3 read_sector() / R_tfat_disk_read()
4 write_sector() / R_tfat_disk_write()
5 usb_hmsc_SmpFsiSectorInitialized()
6 usb_hmsc_SmpFsiOffsetSectorRead()
7 usb_hmsc_SmpFsiFileSystemInitialized()
8 usb_hmsc_WaitLoop()
6.3 FSI Function Details
Table 6.2 dev_open()
Name Open Drive
Call format int dev_open(int side)
Arguments int
Return values int
Description Mounts a drive.
Notes
Table 6.3 dev_close()
Name Close Drive
Call format int dev_close(int side)
Arguments int
Return values int
Description Unmounts a drive.
Notes
R01AN0513EJ0110 Rev.1.10
Aug 10, 2011
USB Host Mass Storage Class Driver(HMSC)
Description
Mounts a drive.(TFAT is not in use)
Unmounts a drive.(TFAT is not in use)
Reads data.
Writes data.
Initializes global variable of FSL.
Gets the offset sector.
Sets drive information in FSL. (non-TFAT-compliant)
Wait for completion of DATA READ / DATA WRITE
(For non-OS)
side Drive number
Success
Failure
side Drive number
Success
Failure
0
-1
0
-1
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