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update msc example

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This commit is contained in:
hathach 2018-07-25 22:35:02 +07:00
parent 8fc1d151fc
commit 93db46292a
2 changed files with 9 additions and 2 deletions
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10
examples/device/nrf52840/src/msc_device_app.c
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@ -97,12 +97,18 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
break;
case SCSI_CMD_TEST_UNIT_READY:
ptr = NULL;
// Command that host uses to check our readiness before sending other commands
len = 0;
break;
case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
ptr = NULL;
// Host is about to read/write etc ... better not to disconnect disk
len = 0;
break;
case SCSI_CMD_START_STOP_UNIT:
// Host try to eject/safe remove/powerof us. We could safely disconnect with disk storage, or go into lower power
// scsi_start_stop_unit_t const * cmd_start_stop = (scsi_start_stop_unit_t const *) scsi_cmd
len = 0;
break;

1
src/class/msc/msc.h
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@ -133,6 +133,7 @@ typedef enum
SCSI_CMD_INQUIRY = 0x12, ///< The SCSI Inquiry command is used to obtain basic information from a target device.
SCSI_CMD_MODE_SELECT_6 = 0x15, ///< provides a means for the application client to specify medium, logical unit, or peripheral device parameters to the device server. Device servers that implement the MODE SELECT(6) command shall also implement the MODE SENSE(6) command. Application clients should issue MODE SENSE(6) prior to each MODE SELECT(6) to determine supported mode pages, page lengths, and other parameters.
SCSI_CMD_MODE_SENSE_6 = 0x1A, ///< provides a means for a device server to report parameters to an application client. It is a complementary command to the MODE SELECT(6) command. Device servers that implement the MODE SENSE(6) command shall also implement the MODE SELECT(6) command.
SCSI_CMD_START_STOP_UNIT = 0x1B,
SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL = 0x1E,
SCSI_CMD_READ_CAPACITY_10 = 0x25, ///< The SCSI Read Capacity command is used to obtain data capacity information from a target device.
SCSI_CMD_REQUEST_SENSE = 0x03, ///< The SCSI Request Sense command is part of the SCSI computer protocol standard. This command is used to obtain sense data -- status/error information -- from a target device.