Commit e59db6a732dbbb064b1e39a288a25edc90adac5d * MdeModulePkg/UsbMass: Merge UsbBoot(Read|Write)Blocks(16) introduces a bug that causes writing to USB key always fails.
When that patch is verified, only reading was verified. The root cause is when the writing operation is performed, the data direction EfiUsbDataIn is wrongly used. Instead, it should be EfiUsbDataOut. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <[email protected]> Cc: Star Zeng <[email protected]> --- MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c index c35c7bdc12..69e2252134 100644 --- a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c +++ b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassBoot.c @@ -861,7 +861,7 @@ UsbBootReadWriteBlocks ( UsbMass, &Cmd, (UINT8) sizeof (USB_BOOT_READ_WRITE_10_CMD), - EfiUsbDataIn, + Write ? EfiUsbDataOut : EfiUsbDataIn, Buffer, ByteSize, Timeout @@ -941,7 +941,7 @@ UsbBootReadWriteBlocks16 ( UsbMass, Cmd, (UINT8) sizeof (Cmd), - EfiUsbDataIn, + Write ? EfiUsbDataOut : EfiUsbDataIn, Buffer, ByteSize, Timeout -- 2.16.1.windows.1 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
