diff options
Diffstat (limited to 'host/lib')
| -rw-r--r-- | host/lib/transport/libusb1_zero_copy.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/host/lib/transport/libusb1_zero_copy.cpp b/host/lib/transport/libusb1_zero_copy.cpp index 8cf76989b..fc36b36b7 100644 --- a/host/lib/transport/libusb1_zero_copy.cpp +++ b/host/lib/transport/libusb1_zero_copy.cpp @@ -108,6 +108,11 @@ static void LIBUSB_CALL libusb_async_cb(libusb_transfer* lut) * Reusable managed buffer: * - Associated with a particular libusb transfer struct. * - Submits the transfer to libusb in the release method. + * + * A note on the USB context: None of the libusb calls made in this class + * require passing in a USB context. The context is implied by virtue of the + * libusb_transfer struct we pass in, which contains a device handle, which + * contains a context. **********************************************************************/ class libusb_zero_copy_mb : public managed_buffer { @@ -120,7 +125,6 @@ public: : _release_cb(release_cb) , _is_recv(is_recv) , _name(name) - , _ctx(libusb::session::get_global_session()->get_context()) , _lut(lut) , _frame_size(frame_size) { /* NOP */ @@ -194,7 +198,6 @@ private: std::function<void(libusb_zero_copy_mb*)> _release_cb; const bool _is_recv; const std::string _name; - libusb_context* _ctx; libusb_transfer* _lut; const size_t _frame_size; }; |