lowl-spi: Move knc_spi_txrx to linux_spi_txrx
lowl-spi: GPIO access functions
jingtian: Detection-only code for new driver
jingtian: Implement device protocol dump
work2d: Expose WORK2D_MAX_DIVISIONS in header
util: double_find_precision function to identify ideal precision for a fp number
Expose target_diff function and add pdiff_to_bdiff macro
SSM: Track proxy share difficulties
proxy: Provide a place to store desired proxyshare difficulty on a per-username basis, and copy it to SSM connections when authorising them
proxy: Accept --set pxy:diff=N to set preferred proxyshare difficulty
SSM: Initialise proxyshare difficulty from --set pxy:diff=N
SSM: Track authorised users for each connection
SSM: Track stratum connections for each proxy user
SSM: Propagate proxy-share difficulty changes to established connections
SGW: Support for proxy-share difficulty preferences
aan: Refactor aan_spi_cmd a bit
jingtian: Do detection asynchronously across all possible chipselects so they complete in parallel
aan: aan_spi_parse_rx implies spi_clear_buf
DevAPI: Some designs set the main thr tv_poll from secondary thrs, so check it after the loop
aan: Implement mining