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Re: [Qemu-devel] [PATCH v2 1/6] qerror: add MAX_KEYCODES 16
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH v2 1/6] qerror: add MAX_KEYCODES 16 |
Date: |
Fri, 15 Jun 2012 09:57:49 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.4) Gecko/20120422 Thunderbird/10.0.4 |
Hi,
>> It seems we need to notice user when inputted keys are more than 16.
>
> Hi Gerd,
>
> When I use 'sendkey' command to send key-series to guest, some keyboard
> events will be send. There is a limitation (16) that was introduced by this
> old commit c8256f9d (without description). Do you know the reason?
Probably hardware limitation, ps/2 keyboards can buffer up to 16 keys IIRC.
Likewise the usb hid devices can buffer up to 16 events. In that case
it is just a qemu implementation detail and not a property of the
hardware we are emulating, so it can be changed. Not trivially though
as the buffer is part of the migration data, so it is more work that
just changing a #define.
HTH,
Gerd
- [Qemu-devel] [PATCH v2 0/6] convert sendkey to qapi, Amos Kong, 2012/06/01
- [Qemu-devel] [PATCH v2 1/6] qerror: add QERR_OVERFLOW, Amos Kong, 2012/06/01
- Re: [Qemu-devel] [PATCH v2 1/6] qerror: add QERR_OVERFLOW, Anthony Liguori, 2012/06/04
- Re: [Qemu-devel] [PATCH v2 1/6] qerror: add MAX_KEYCODES 16, Amos Kong, 2012/06/05
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- Re: [Qemu-devel] [PATCH v2 1/6] qerror: add MAX_KEYCODES 16, Amos Kong, 2012/06/14
- Re: [Qemu-devel] [PATCH v2 1/6] qerror: add MAX_KEYCODES 16, Amos Kong, 2012/06/15
- Re: [Qemu-devel] [PATCH v2 1/6] qerror: add MAX_KEYCODES 16,
Gerd Hoffmann <=
- Re: [Qemu-devel] [PATCH v2 1/6] qerror: add MAX_KEYCODES 16, Luiz Capitulino, 2012/06/15
- Re: [Qemu-devel] [PATCH v2 1/6] qerror: add MAX_KEYCODES 16, Amos Kong, 2012/06/18
- Re: [Qemu-devel] [PATCH v2 1/6] qerror: add MAX_KEYCODES 16, Amos Kong, 2012/06/19
[Qemu-devel] [PATCH v2 2/6] fix doc of using raw values with sendkey, Amos Kong, 2012/06/01
[Qemu-devel] [PATCH v2 4/6] hmp: rename arguments, Amos Kong, 2012/06/01
[Qemu-devel] [PATCH v2 3/6] rename keyname '<' to 'less', Amos Kong, 2012/06/01
[Qemu-devel] [PATCH v2 5/6] qapi: generate list struct and visit_list for enum, Amos Kong, 2012/06/01