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CONFIG_USB_CONFIGFS_F_LB_SS: Loopback and sourcesink function (for testing)

General informations

The Linux kernel configuration item CONFIG_USB_CONFIGFS_F_LB_SS:

Help text

Loopback function loops back a configurable number of transfers. Sourcesink function either sinks and sources bulk data. It also implements control requests, for "chapter 9" conformance. Make this be the first driver you try using on top of any new USB peripheral controller driver. Then you can use host-side test software, like the "usbtest" driver, to put your hardware and its driver through a basic set of functional tests.

Hardware

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