Thanks for the clarification.
I tried disabling and stopping MPM in order to release the I2C device that I
want to read from. However, i'm still getting the same error that I stated
above("device or resource is busy"). Is there any way of disabling or stopping
MPM ?
On Wednesday, October 6, 2021, 02:50:06 PM EDT, Marcus D. Leech
<patchvonbr...@gmail.com> wrote:
On 2021-10-06 1:56 p.m., Tellrell White via USRP-users wrote:
Currently, I have an app that I've cross-compiled for the N310 and I'm trying
to read data from the I/O Expander(TCA6408a) on the daughterboard, however, I'm
getting an error stating that the "device or resource is busy" which leads me
to believe that there is a driver already using the device. Does anyone have
any insight on this?? Also, is there any information on using I2C for the n3xx
devices?
Pretty sure that MPM (part of the UHD environment) "owns" the I2C and SPI
interfaces.
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