Re: [PATCH v4 0/7] USB MIDI Gadget improvements and bug fixes

From: Felipe Ferreri Tonello
Date: Tue Oct 27 2015 - 10:14:45 EST


Hi Balbi,

On 26/10/15 16:55, Felipe F. Tonello wrote:
> Patch 7 has changes on how to transmit IN USB requests. It implements a FIFO
> of pre-allocated usb requests and uses then as needed, instead of allocating
> then on demand. This is my initial implementation and is open for
> suggestions and comments.
>
> Patches 1-6 is pretty much straight forward.
>
> changes in v4:
> - pre-alocation of in requests.
> - more code clean up
> - fix memory leak on out requests
> - configure endpoints only when setting up MIDIStreaming interface
>
> Felipe F. Tonello (7):
> usb: gadget: f_midi: Transmit data only when IN ep is enabled
> usb: gadget: f_midi: remove duplicated code
> usb: gadget: define free_ep_req as universal function
> usb: gadget: f_midi: fix leak on failed to enqueue out requests
> usb: gadget: f_midi: set altsettings only for MIDIStreaming interface
> usb: gadget: gmidi: Cleanup legacy code
> usb: gadget: f_midi: pre-allocate IN requests
>
> drivers/usb/gadget/function/f_midi.c | 201 ++++++++++++++++++++---------
> drivers/usb/gadget/function/f_sourcesink.c | 6 -
> drivers/usb/gadget/function/g_zero.h | 1 -
> drivers/usb/gadget/legacy/gmidi.c | 12 +-
> drivers/usb/gadget/u_f.c | 8 ++
> drivers/usb/gadget/u_f.h | 3 +-
> 6 files changed, 151 insertions(+), 80 deletions(-)
>

I have rebased this patchset on top of your next branch. It removes the
need for patch 1 and patch 5.

I am waiting for more comments on other patches to fix things if needed
before sending v5.

--
Felipe
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