Question about cudaCreateChannelDesc

Accelerated Computing CUDA CUDA Programming and Performance
#1

Could someone tell me the difference between cudaCreateChannelDesc(32,0,0,0,cudaChannelFormatKindFloat) and cudaCreateChannelDesc? Are their returns the same?
Thanks!

#2

Almost same.
In high level api we use cudaCreateChannelDesc; and cudaCreateChannelDesc(32,0,0,0,cudaChannelFormatKindFloat) will be used in low level api.

#3

Thank you :)