Soapy method "writeRegisters" does not seem to be implemented

[KarlL2]

SoapyLMS7 implements writeRegister but not writeRegisters:

LimeSuite/SoapyLMS7/SoapyLMS7.h

Line 240 in 23b6172

void writeRegister(const std::string &name, const unsigned addr, const unsigned value);

LimeSuite/SoapyLMS7/Settings.cpp

Line 703 in 4ab24db

void SoapyLMS7::writeRegister(const std::string &name, const unsigned addr, const unsigned value)

Is it not possible to write to several registers on the Lime with the Soapy API? Or am I missing something?

This is related to the post Frequency hopping transmit where I would like to write 2 registers in one call.

[KarlL2]

Could someone confirm or refute my finding? Maybe @IgnasJarusevicius or @guruofquality ?

[IgnasJarusevicius]

It is not implemented in SoapyLMS7.
I do not know about SoapySDR itself, maybe it has default implementation that just calls writeRegister() multiple times.

[KarlL2]

Thanks for the confirmation @IgnasJarusevicius .
It seems SoapySDR doesn't do anything by default:

https://github.com/pothosware/SoapySDR/blob/67abec9fe7ba84b4d069951c6e7f8c45f11e8335/lib/Device.cpp#L693

Any reasons why writeRegisters is not implemented in SoapyLMS7? Is it because SPI_write_batch takes an array of addresses and an array of data, while Soapy's API is a single address and array of data?

LimeSuite/src/lms7002m/LMS7002M.cpp

Line 1981 in a5b3a10

int LMS7002M::SPI_write_batch(const uint16_t* spiAddr, const uint16_t* spiData, uint16_t cnt, bool toChip)

If that's the case then the implementation of writeRegisters could create the corresponding array of contiguous addresses and call SPI_write_batch.