Cross Reference: /src/sys/dev/spi/mcp48x1.c

History log of /src/sys/dev/spi/mcp48x1.c
Revision	Date	Author	Comments
1.7	13-Sep-2025	thorpej	Define and use spi_handle_t to drive home the point that it's an opaque type.
1.6	13-Sep-2025	thorpej	Support direct configuration.
1.5	11-Sep-2025	thorpej	Use SPI_MATCH_DEFAULT rather than hard-coding 1.
1.4	10-Sep-2025	thorpej	Use speed calculation helper macros. This actally fixes tmp121, where comment did not match code (comment was correct, confirmed against data sheet).
1.3	19-Jan-2022	thorpej	Pass the device_t into spi_configure(), and make the API contract that spi_configure() will print errors if they occur; the driver is off the hook.
1.2	19-Jan-2022	thorpej	Probe / match routines should not have side-effects: do the spi_configure() calls in the attach routines.
1.1	25-Feb-2014	rkujawa	branches: 1.1.4; 1.1.6; 1.1.10; 1.1.54; 1.1.64; Add preliminary driver for Microchip MCP48x1 family of DACs. Needs more testing and an appropriate API for such (non-audio) DACs. For now one can set the output value using sysctl node. Also sysmon(4) will conveniently report the voltage on Vout pin of the DAC. Note that this is not an actual measured voltage, but merely calculated using equation from datasheet. Real voltage might be different and depend on analog circuitry attached to the DAC.
1.1.64.1	09-Aug-2021	thorpej	Port over the changes from thorpej-i2c-spi-conf to thorpej-i2c-spi-conf2, which is based on a newer HEAD revision.
1.1.54.2	19-May-2021	thorpej	match/probe routines should not have side-effects; call spi_configure() from the attach routine.
1.1.54.1	19-May-2021	thorpej	Use spi_compatible_match().
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	25-Feb-2014	tls	file mcp48x1.c was added on branch tls-maxphys on 2014-08-20 00:03:50 +0000
1.1.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.1	25-Feb-2014	yamt	file mcp48x1.c was added on branch yamt-pagecache on 2014-05-22 11:40:36 +0000
1.1.4.2	18-May-2014	rmind	sync with head
1.1.4.1	25-Feb-2014	rmind	file mcp48x1.c was added on branch rmind-smpnet on 2014-05-18 17:45:47 +0000

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