USB services: Difference between revisions
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The input u32 is from the u32 at entry+0 from the associated [[#QueryAvailableInterfaces]] output entry. User-processes use size 0x1B8 for the output buffer. The output buffer contains the first 0x1B8-bytes from [[#UsbHsInterface]]. | The input u32 is from the u32 at entry+0 from the associated [[#QueryAvailableInterfaces]] output entry. User-processes use size 0x1B8 for the output buffer. The output buffer contains the first 0x1B8-bytes from [[#UsbHsInterface]]. | ||
This returns an error if the interface was already acquired by another process. | |||
== GetDescriptorString == | == GetDescriptorString == | ||