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USB Hub: Initial implementation asynchronous pipe I/O in the LPC17 HCD needed for hub support

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Gregory Nutt
2015-04-22 15:03:25 -06:00
parent f7ec9b0831
commit 9c61847203
2 changed files with 617 additions and 141 deletions
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arch/arm/src/lpc17xx/lpc17_usbhost.c
+614 -138
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include/nuttx/usb/usbhost.h
+3 -3
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@@ -468,9 +468,9 @@
* *
* Description: * Description:
* Process a request to handle a transfer descriptor. This method will * Process a request to handle a transfer descriptor. This method will
* enqueue the transfer request and rwait for it to complete. Only one transfer may * enqueue the transfer request. Only one transfer may be queued; Neither this
* be queued; Neither this method nor the ctrlin or ctrlout methods can be called * method nor the ctrlin or ctrlout methods can be called again until this
* again until this function returns. * function returns.
* *
* - 'transfer' is a blocking method; this method will not return until the * - 'transfer' is a blocking method; this method will not return until the
* transfer has completed. * transfer has completed.