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https://bugzilla.tianocore.org/show_bug.cgi?id=767 If a USB Mass Storage device does not support the Get Max LUN command, then the USB I/O Protocol ControlTransfer() service may return an error. If an error is returned for this command, then assume that the device does not support multiple LUNs and return a maximum LUN value of 0. The USB Mass Storage Class Specification states that a maximum LUN value larger than 0x0F is invalid. Add a check to make sure this maximum LUN value is in this valid range, and if it is not, then assume that the device does not support multiple LUNs and return a maximum LUN value of 0. This change improves compatibility with USB FLASH drives that do not support the Get Max LUN command or return an invalid maximum LUN value. Cc: Star Zeng <star.zeng@intel.com> Cc: Eric Dong <eric.dong@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
EDK II Project
A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications from www.uefi.org.
Contributions to the EDK II open source project are covered by the TianoCore Contribution Agreement 1.1
The majority of the content in the EDK II open source project uses a BSD 2-Clause License. The EDK II open source project contains the following components that are covered by additional licenses:
- AppPkg/Applications/Python/Python-2.7.2/Tools/pybench
- AppPkg/Applications/Python/Python-2.7.2
- AppPkg/Applications/Python/Python-2.7.10
- BaseTools/Source/C/BrotliCompress
- MdeModulePkg/Library/BrotliCustomDecompressLib
- OvmfPkg
- CryptoPkg/Library/OpensslLib/openssl
The EDK II Project is composed of packages. The maintainers for each package are listed in Maintainers.txt.