Close USB Mass Storage
更新时间： 2026/08/06
在Gitcode上查看源码Close USB Mass Storage
Change History
| openUBMC Version | Revision Date | Description |
|---|---|---|
| 25.06 | 2025/06/26 | Initial draft: add command details |
Basic Information
Function Description
Disable the connection to the USB storage device.
Privilege
Command Information
Request Information
| Byte | Data Field |
|---|---|
| NetFn | 30h |
| CMD | 92h |
| 1:3 | Manufacturer ID, LS Byte first. The length is fixed to three bytes. For example, if the vendor ID is 2011 and the corresponding hexadecimal value is 0x0007DB, the first byte is DBh, the second byte is 07h, and the third byte is 00h. |
| 4 | Sub command: 25h |
| 5 | Parameter Selector, parameter selection=03h 00h: Create USB Mass Storage 03h: Close USB Mass Storage 01h: Get USB Mass Storage Status |
| 6 | device id: 0: iBMA USB flash drive 1: SP USB flash drive NOTE: To be compatible with earlier versions, this byte is not mandatory. If this byte is unavailable, the operation can be performed only on the SP USB flash drive. |
Response Information
| Byte | Data Field |
|---|---|
| 1 | Completion Code NOTE: For a long-delay IPMI command, the returned value does not indicate the operation result. You can query the operation result by running the Get USB Mass Storage Status command with the parameter set to 01h.An error code (0xCE) is returned for a request sent by a non-system interface.If there is no iBMA partition or no iBMA installation package, an error is returned (error code = 0xD5).If the product does not support this command, an error code (0xC1) is returned. |
| 2:4 | Manufacturer ID, LS Byte first. The length is fixed to three bytes. For example, if the vendor ID is 2011 and the corresponding hexadecimal value is 0x0007DB, the first byte is DBh, the second byte is 07h, and the third byte is 00h. |
| 5 | reserved |
Command Example
Query the heat dissipation mode.
Request:
bash
ipmicmd -k "0f 00 MM NN" smi 0Response:
text
0f MM NN