USB | Quirks

Word    : quirk Meaning : an unusual habit or part of someone's personality, or something that is strange and unexpected Examples: You have to get used to other people's quirks and foibles.           There is a quirk in the rules that allows you to invest money without paying tax.

 

Quirks는 디바스에서 설계되고 예상한 대로 동작하지 않는 경우를 고려하는 속성을 의미한다.
"Quirks" are attributes of a device that are considered to be noncompliant with expected operation.

 

Example of quirk setting from DWC3 core :

 * @disable_scramble_quirk: set if we enable the disable scramble quirk

 * @u2exit_lfps_quirk: set if we enable u2exit lfps quirk

 * @u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk

 * @req_p1p2p3_quirk: set if we enable request p1p2p3 quirk

 * @del_p1p2p3_quirk: set if we enable delay p1p2p3 quirk

 * @del_phy_power_chg_quirk: set if we enable delay phy power change quirk

 * @lfps_filter_quirk: set if we enable LFPS filter quirk

 * @rx_detect_poll_quirk: set if we enable rx_detect to polling lfps quirk

 * @dis_u3_susphy_quirk: set if we disable usb3 suspend phy

 * @dis_u2_susphy_quirk: set if we disable usb2 suspend phy

 * @dis_u1u2_quirk: set if we reject transition to U1 or U2 state

 * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk