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Re: [Qemu-devel] [PATCH] usb-mtp: fix usb_mtp_get_device_info so that li
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH] usb-mtp: fix usb_mtp_get_device_info so that libmtp on the guest doesn't complain |
Date: |
Tue, 26 Apr 2016 10:11:56 +0100 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Sun, Apr 17, 2016 at 04:29:53AM -0700, Isaac Lozano wrote:
> If an application uses libmtp on the guest system,
> it will complain with the warning message:
> LIBMTP WARNING: VendorExtensionID: ffffffff
> LIBMTP WARNING: VendorExtensionDesc: (null)
> LIBMTP WARNING: this typically means the device is PTP (i.e. a camera) but
> not a MTP device at all. Trying to continue anyway.
>
> This is because libmtp expects a MTP Vendor Extension ID of 0x00000006 and a
> MTP Version of 0x0064. These numbers are taken from Microsoft's MTP Vendor
> Extension Identification Message page and are what most physical devices
> show.
>
> Signed-off-by: Isaac Lozano <address@hidden>
> ---
> hw/usb/dev-mtp.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Welcome to QEMU!
Link to MTP Vendor Extension Identification Message page for other
reviewers:
https://msdn.microsoft.com/en-us/library/ff632482.aspx
Reviewed-by: Stefan Hajnoczi <address@hidden>
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