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| author | Gregory Nutt <gnutt@nuttx.org> | 2014-03-20 15:20:24 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2014-03-20 15:20:24 -0600 |
| commit | ec7904d89eb37a7ccb0ef130f2089206f185ebe5 (patch) | |
| tree | 9fbe4e4e850e86075cf8da3ae73480696bc65536 /nuttx/drivers/usbdev | |
| parent | 641ed1fd58895554a604c5314fff44330c9e9bf0 (diff) | |
| download | nuttx-ec7904d89eb37a7ccb0ef130f2089206f185ebe5.tar.gz nuttx-ec7904d89eb37a7ccb0ef130f2089206f185ebe5.tar.bz2 nuttx-ec7904d89eb37a7ccb0ef130f2089206f185ebe5.zip | |
If DCD supports queuing of stall requests then USB MSC delay work-around is not necessary
Diffstat (limited to 'nuttx/drivers/usbdev')
| -rw-r--r-- | nuttx/drivers/usbdev/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/nuttx/drivers/usbdev/Kconfig b/nuttx/drivers/usbdev/Kconfig index f512bd4a7..8da9d9e35 100644 --- a/nuttx/drivers/usbdev/Kconfig +++ b/nuttx/drivers/usbdev/Kconfig @@ -72,6 +72,22 @@ bool "Board DMA Allocation Hooks" memory of the specified size; usbdev_dma_free() is the corresponding function that will be called to free the DMA-capable memory. +config ARCH_USBDEV_STALLQUEUE + bool + default n + ---help--- + This option is set by the USB device controller driver (DCD) + selection. These selection means that the DCD can support + queuing of stall requests. By this, it is meant that, (1) the + stall is not sent until all write requests preceding the stall + request are sent, (2) the stall is sent, and then after the + stall is cleared, (3) all write requests queued after the stall + are sent. + + If the driver does not support this feature, that the class drivers + will enable some hokey and inefficient delay logic to workaround + the lack of queuing. + config USBDEV_TRACE bool "Enable USB tracing for debug" default n |