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| author | John Robertson <jj.robertson@asu.edu> | 2015-11-19 22:57:45 -0700 |
|---|---|---|
| committer | Mihai Tudor Panu <mihai.tudor.panu@intel.com> | 2015-11-25 11:45:20 -0800 |
| commit | 287250b32dc18c781e45c103b0b4e3e5917d6c2e (patch) | |
| tree | c89f55918ee7cbd783cc45824a208a69dfe7fe47 | |
| parent | 758b49f51d63ab13c7088dbca4fef855dea692ec (diff) | |
hcsr04: Pass reference to current object to ISR.
This will allow users to call ackEdgeDetected() on the object passed into the function pointer, instead of requiring them to have a global reference to the object.
Signed-off-by: JJ Robertson <jjrob13@gmail.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
| -rw-r--r-- | src/hcsr04/hcsr04.cxx | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/hcsr04/hcsr04.cxx b/src/hcsr04/hcsr04.cxx index b89ee0b..f30e9d8 100644 --- a/src/hcsr04/hcsr04.cxx +++ b/src/hcsr04/hcsr04.cxx @@ -63,7 +63,7 @@ HCSR04::HCSR04 (uint8_t triggerPin, uint8_t echoPin, void (*fptr)(void *)) { } mraa_gpio_dir(m_echoPinCtx, MRAA_GPIO_IN); - mraa_gpio_isr(m_echoPinCtx, MRAA_GPIO_EDGE_BOTH, fptr, NULL); + mraa_gpio_isr(m_echoPinCtx, MRAA_GPIO_EDGE_BOTH, fptr, (void*)this); } HCSR04::~HCSR04 () { |