[U-Boot] [PATCH v2] usb: kbd: Fix key repeat not always using

[Marek Vasut <marex@denx.de>]

On Wednesday, May 13, 2015 at 02:47:51 PM, Hans de Goede wrote:
> The usb-kbd key repeat code assumes that reports get repeated every 40 ms,
> this is never true when using CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP, and
> does not always works for CONFIG_SYS_USB_EVENT_POLL and
> CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE since not all usb keyboards honor
> the usb_set_idle() command.
> 
> For CONFIG_SYS_USB_EVENT_POLL we must use usb_set_idle() since we do a
> blocking wait for the hid report, so if we do not tell the keyboard to send
> a hid report every 40ms even if nothing changes then we will block u-boot
> for 1s (the default u-boot usb interrupt packet timeout). Note that in this
> case on keyboards which do not support usb_set_idle() we loose and we
> actually get 1s latencies on other u-boot activities.
> 
> For the other poll-methods this commit stops using usb_set_idle() and
> instead repeats the last received hid-report every 40 ms as long as no new
> hid-report is received. This fixes key-repeat not working at all with
> CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP and fixes it not working with
> keyboards which do not implement usb_set_idle() when using
> CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Woohoo, it's been a while since I picked some USB patches! ;-)

Applied, thanks!

Best regards,
Marek Vasut