| What: /sys/class/issei/ | |
| Date: June 2026 | |
| KernelVersion: 7.2 | |
| Contact: Alexander Usyskin <alexander.usyskin@intel.com> | |
| Description: | |
| The issei/ class sub-directory belongs to issei device class | |
| What: /sys/class/issei/issei<N>/ | |
| Date: June 2026 | |
| KernelVersion: 7.2 | |
| Contact: Alexander Usyskin <alexander.usyskin@intel.com> | |
| Description: | |
| The /sys/class/issei/isseiN directory is created for | |
| each probed issei device | |
| What: /sys/class/issei/issei<N>/fw_ver | |
| Date: June 2026 | |
| KernelVersion: 7.2 | |
| Contact: Alexander Usyskin <alexander.usyskin@intel.com> | |
| Description: Display the ISSE firmware version. | |
| The version of the ISSE firmware is in format: | |
| <major>.<minor>.<milestone>.<build_no>. | |
| What: /sys/class/issei/issei<N>/fw_clients | |
| Date: June 2026 | |
| KernelVersion: 7.2 | |
| Contact: Alexander Usyskin <alexander.usyskin@intel.com> | |
| Description: | |
| The fw_clients directory stores all firmware clients on the | |
| probed issei device | |
| What: /sys/class/issei/issei<N>/fw_clients/<M> | |
| Date: June 2026 | |
| KernelVersion: 7.2 | |
| Contact: Alexander Usyskin <alexander.usyskin@intel.com> | |
| Description: | |
| The /sys/class/issei/isseiN/fw_client/M directory is created for | |
| each firmware client on the probed issei device where M is the | |
| id of firmware client. | |
| What: /sys/class/issei/issei<N>/fw_clients/<M>/id | |
| Date: June 2026 | |
| KernelVersion: 7.2 | |
| Contact: Alexander Usyskin <alexander.usyskin@intel.com> | |
| Description: Displays id of the firmware client | |
| The id of firmware client is it's number in client enumeration order, | |
| starting from 1. | |
| What: /sys/class/issei/issei<N>/fw_clients/<M>/uuid | |
| Date: June 2026 | |
| KernelVersion: 7.2 | |
| Contact: Alexander Usyskin <alexander.usyskin@intel.com> | |
| Description: Displays uuid of the firmware client | |
| The universally unique identifier of the firmware client | |
| What: /sys/class/issei/issei<N>/fw_clients/<M>/mtu | |
| Date: June 2026 | |
| KernelVersion: 7.2 | |
| Contact: Alexander Usyskin <alexander.usyskin@intel.com> | |
| Description: Displays maximum transmission unit of the firmware client | |
| The maximum transmission unit (in bytes) used by the firmware client. | |
| What: /sys/class/issei/issei<N>/fw_clients/<M>/ver | |
| Date: June 2026 | |
| KernelVersion: 7.2 | |
| Contact: Alexander Usyskin <alexander.usyskin@intel.com> | |
| Description: Displays version of the firmware client | |
| The version of the firmware client |