https://git.reactos.org/?p=reactos.git;a=commitdiff;h=e39b88e3e79f832ba4d52b3f4766772e148c8679
commit e39b88e3e79f832ba4d52b3f4766772e148c8679 Author: Vadim Galyant <[email protected]> AuthorDate: Fri Dec 1 10:16:24 2017 +0900 Commit: Amine Khaldi <[email protected]> CommitDate: Sun Jan 21 19:35:45 2018 +0100 [USBPORT] Add USB2_GetPrevMicroFrame(). --- drivers/usb/usbport/usb2.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/usb/usbport/usb2.c b/drivers/usb/usbport/usb2.c index d8d5da9af1..a3c0d1449d 100644 --- a/drivers/usb/usbport/usb2.c +++ b/drivers/usb/usbport/usb2.c @@ -52,6 +52,19 @@ USB2_IncMicroFrame(OUT PUCHAR frame, } } +VOID +NTAPI +USB2_GetPrevMicroFrame(OUT PUCHAR frame, + OUT PUCHAR uframe) +{ + *uframe = USB2_MICROFRAMES - 1; + + if (*frame) + --*frame; + else + *frame = USB2_FRAMES - 1; +} + BOOLEAN NTAPI USB2_CheckTtEndpointInsert(IN PUSB2_TT_ENDPOINT nextTtEndpoint,
