This page describes all changes made to the usbh_cd_mst package, the USB Host Mass Storage Class Driver, since its release.
Version
3.17 (2021-03-30, 16:43):
- Fixed the transfer direction of the SCSI Synchronize Cache command as DIR_ANY was set which resulted in an IN direction, despite the command being an OUT command.
3.16 (2020-07-07, 13:03):
- MST device was not handled correctly on interfaces other than 0.
3.15 (2020-02-27, 16:45):
- Compiler Warning eliminated.
3.14 (2019-08-27, 16:30):
- Static analysis issues eliminated.
3.13 (2018-09-07, 08:36):
- Transfer could not be started from multiple tasks.
- Refactoring to comply with coding standard rules.
3.12r2 (2018-08-29, 18:17):
- Document HTML link added to the documentation folder.
- History and document files renamed to the package name.
3.12 (2018-05-09, 13:16):
- f_initvolume() could return with error code 16 (F_ERR_CARDREMOVED) when called after f_delvolume(). START STOP UNIT command is now disabled by default in configuration.
3.11 (2018-05-03, 06:56):
- Eliminated possible data loss: synchronizes buffers on the remote device when driver is released or flush function is called.
- Slow reading and writing could be experienced when f_putc() was used and SCSI_SUPPORT_REMOVABLE_DEVICE=1, because device status was requested at every call. Introduced option SCSI_REMOVABLE_DEVICE_POLL_INTERVAL_MS.
3.10:
- Refactoring to comply with coding standard rules (CodeSonar).
3.9:
- usbh_mst_present() could incorrectly report the presence of the device straight after disconnecting it.
3.8:
- Static analyzer warnings were eliminated. psp_types.h is included instead of stdint.h.
3.7:
- CD-ROM support added.
3.6:
- Media not supporting Test Unit Ready were not possible to get mounted. Non-removable media are supported now in case SCSI_SUPPORT_REMOVABLE_DEVICE is enabled.
3.5:
- Class driver got stuck while trying to issue Mode Sense command to some MSDs (MSDs returning less than 8 Bytes were affected).
3.4:
- scsi_read()/scsi_write() incorrectly reported success in case of timeout (error).
- scsi_write() retried the write even if the media reported write protection (causing a big delay before reporting the error).
3.3:
- Updated to work with USB host base major version 3.
3.2:
- Treat "MODE SENSE" not supported if the request returns command failed. Some memory sticks couldn't be accessed without this modification.
3.1:
- READ(12) and WRITE(12) removed, some MSD doesn't support it, so only READ(10) WRITE(10) is used.
3.0:
- scsi_raw_read() and scsi_raw_write() added, these functions adds the possibility to send raw SCSI commands to the device and read/write data.
- LUN ID parameter added to SCSI communication transfer function.
2.7:
- no. of available blocks was incorrectly reported as one less.
2.6:
- Last block couldn't be read/written due to a comparison error
- SCSI version merged with MST, SCSI version file was:
2.8:
- definition of unused command codes removed.
- scsi_mode_sense(): handle the case when device does not support MODE SENSE command.
- scsi_test_unit_ready(): LUN state handled here if TEST UNIT READY succeeded but current LUN state is DISCONNECTED.
- scsi_get_unit_state(): extra call for request_sense() removed: REQUEST SENSE needs to be called only in case TEST UNIT READY reported IO_CHECK.
2.7:
- lun_state cleared at startup, caused unoperational media on systems where uninitialized variables are not cleared at startup.
2.6:
- Mode sense request will also check the validity of the response length. Some memory sticks reports invalid response without refusing mode sense 10 request.
2.5:
- psp_endianness.h used instead of psp_endiness.h.
2.4:
- needless version checks removed from API header file.
- return codes changed from enum to #define.
2.3:
- read/write checks if the accessed sector (range) is valid, this way over-addressing a device can be avoided.
2.2:
- OAL resource initialization changed. It will free resources from init in case of failure.
2.1:
- scsi descriptor communication interface check added to scsi_get_lun_info() and scsi_get_unit_state() to protect the system against disconnection.
2.5:
- usbh_mst_transfer(): in case an IN transfer after a successful Command gets STALLed by the device, ERR_IO_NOT_SUPP is returned.
2.4:
- psp_endianness.h used instead of psp_endiness.h.
- usbh_utils version number check removed.
2.3:
- needless version checks removed from API header file.
- all notification callbacks are cast to (void) to avoid warnings this is required because notification functions return an error code.
2.2:
- data residue check removed in case status indicates success or fail. Some memory sticks didn't operate correctly as bad residue indicated in case of failure.
2.1:
- usbh notification function parameters were in the reverse order.
