Date: Wed, 29 Jun 2016 10:43:31 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r302272 - stable/10/lib/libusb Message-ID: <201606291043.u5TAhVvL061237@repo.freebsd.org>
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Author: hselasky Date: Wed Jun 29 10:43:31 2016 New Revision: 302272 URL: https://svnweb.freebsd.org/changeset/base/302272 Log: MFC r301842: Implement code to stop all USB endpoints before executing a USB device reset command, alternate setting command or set configuration command. Else LibUSB v1.0 will not re-open the endpoints which the kernel closes and the USB application might wait infinitely for transfers to complete. Modified: stable/10/lib/libusb/libusb10.c Directory Properties: stable/10/ (props changed) Modified: stable/10/lib/libusb/libusb10.c ============================================================================== --- stable/10/lib/libusb/libusb10.c Wed Jun 29 10:40:34 2016 (r302271) +++ stable/10/lib/libusb/libusb10.c Wed Jun 29 10:43:31 2016 (r302272) @@ -51,6 +51,8 @@ #include "libusb.h" #include "libusb10.h" +#define LIBUSB_NUM_SW_ENDPOINTS (16 * 4) + static pthread_mutex_t default_context_lock = PTHREAD_MUTEX_INITIALIZER; struct libusb_context *usbi_default_context = NULL; @@ -442,7 +444,7 @@ libusb_open(libusb_device *dev, libusb_d if (dev == NULL) return (LIBUSB_ERROR_INVALID_PARAM); - err = libusb20_dev_open(pdev, 16 * 4 /* number of endpoints */ ); + err = libusb20_dev_open(pdev, LIBUSB_NUM_SW_ENDPOINTS); if (err) { libusb_unref_device(dev); return (LIBUSB_ERROR_NO_MEM); @@ -1489,7 +1491,17 @@ libusb_cancel_transfer(struct libusb_tra UNEXPORTED void libusb10_cancel_all_transfer(libusb_device *dev) { - /* TODO */ + struct libusb20_device *pdev = dev->os_priv; + unsigned x; + + for (x = 0; x != LIBUSB_NUM_SW_ENDPOINTS; x++) { + struct libusb20_transfer *xfer; + + xfer = libusb20_tr_get_pointer(pdev, x); + if (xfer == NULL) + continue; + libusb20_tr_close(xfer); + } } uint16_t
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