Hardware automated link control of daisy-chained storage device
US10510382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2017 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Aug 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4247
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In conventional systems with a plurality of UFS devices daisy-chained to a UFS host, a UFS device driver must be able to differentiate among the links, and send either link control messages or data/management (D/M) messages to a UFS host controller. This can make force the UFS device driver to be complicated and error prone. To address this issue, a host controller can provide a uniform view of a plurality of daisy-chained devices to a device driver of a host. For example, the host controller can be such that from the perspective of the device driver, each device can appear to be a point-to-point connected device. This can allow the device driver to use a same set of link control messages to control the links. In this way, the device driver can be simplified and thus less error prone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.