Renesas R8A66597, Руководство пользователя

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Renesas USB Device USB Host Mass Storage Class Driver(HMSC)
R01AN0513EJ0110 Rev.1.10 Page 31 of 55
Aug 10, 2011
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 Description
1 dev_open() Mounts a drive.(TFAT is not in use)
2 dev_close() Unmounts a drive.(TFAT is not in use)
3 read_sector() / R_tfat_disk_read() Reads data.
4 write_sector() / R_tfat_disk_write() Writes data.
5 usb_hmsc_SmpFsiSectorInitialized() Initializes global variable of FSL.
6 usb_hmsc_SmpFsiOffsetSectorRead() Gets the offset sector.
7 usb_hmsc_SmpFsiFileSystemInitialized() Sets drive information in FSL. (non-TFAT-compliant)
8 usb_hmsc_WaitLoop() Wait for completion of DATA READ / DATA WRITE
(For non-OS)
6.3 FSI Function Details
Table 6.2 dev_open()
Name Open Drive
Call format int dev_open(int side)
Arguments int side Drive number
Return values int
Success 0
Failure
-1
Description Mounts a drive.
Notes
Table 6.3 dev_close()
Name Close Drive
Call format int dev_close(int side)
Arguments int side Drive number
Return values int
Success 0
Failure
-1
Description Unmounts a drive.
Notes