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Use transferBytes when we want to receive data

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Kristian Sloth Lauszus 2016-10-26 00:58:51 -05:00
parent 231fb542a8
commit 6af321a7ac
1 changed files with 2 additions and 2 deletions
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4
usbhost.h
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@ -332,11 +332,11 @@ uint8_t* MAX3421e< SPI_SS, INTR >::bytesRd(uint8_t reg, uint8_t nbytes, uint8_t*
SPI.transfer(reg); SPI.transfer(reg);
memset(data_p, 0, nbytes); // Make sure we send out empty bytes memset(data_p, 0, nbytes); // Make sure we send out empty bytes
#ifdef ESP8266 #ifdef ESP8266
SPI.writeBytes(data_p, nbytes); SPI.transferBytes(data_p, data_p, nbytes);
#else #else
SPI.transfer(data_p, nbytes); SPI.transfer(data_p, nbytes);
#endif
data_p += nbytes; data_p += nbytes;
#endif
#elif defined(__ARDUINO_X86__) #elif defined(__ARDUINO_X86__)
SPI.transfer(reg); SPI.transfer(reg);
SPI.transferBuffer(NULL, data_p, nbytes); SPI.transferBuffer(NULL, data_p, nbytes);