[edk2-devel] EFI_AUDIO_OUTPUT_PROTOCOL: assistance with VirtIO initialization
Michael Brown
mcb30 at ipxe.org
Tue Jul 6 12:53:44 UTC 2021
On 02/07/2021 19:22, Ethin Probst wrote:
> Update: I just realized I'd made a typo -- the unknown request is
> actually a get_min request.
>
> On 7/2/21, Ethin Probst <harlydavidsen at gmail.com> wrote:
>> Setup Data
>> bmRequestType: 0xa1
>> 1... .... = Direction: Device-to-host
>> .01. .... = Type: Class (0x1)
>> ...0 0001 = Recipient: Interface (0x01)
>> bRequest: 130
>> wValue: 0x0201
>> wIndex: 1536 (0x0600)
>> wLength: 2
That doesn't immediately make sense to me in the context of reading
sections 5.2.1.2 and 5.2.2.2.2 of the audio spec, but feel free to post
the whole wireshark capture (off-list!) and I can take a look.
Michael
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#77527): https://edk2.groups.io/g/devel/message/77527
Mute This Topic: https://groups.io/mt/83904983/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-
More information about the edk2-devel-archive
mailing list