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i2c-dev: Clarify the unit of ioctl I2C_TIMEOUT
authorJean Delvare <khali@linux-fr.org>
Tue, 24 Feb 2009 18:19:49 +0000 (19:19 +0100)
committerJean Delvare <khali@linux-fr.org>
Tue, 24 Feb 2009 18:19:49 +0000 (19:19 +0100)
commitcd97f39b7cdf1c8a9c9f52865eec795b7f0c811d
tree010cd2255376a95120da810a1600bbd8d4d7d1c3tree | snapshot
parenta746b578d8406b2db0e9f0d040061bc1f78433cfcommit | diff
i2c-dev: Clarify the unit of ioctl I2C_TIMEOUT

The unit in which user-space can set the bus timeout value is jiffies
for historical reasons (back when HZ was always 100.) This is however
not good because user-space doesn't know how long a jiffy lasts. The
timeout value should instead be set in a fixed time unit. Given the
original value of HZ, this unit should be 10 ms, for compatibility.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
drivers/i2c/i2c-dev.c diff | blob | blame | history
include/linux/i2c-dev.h diff | blob | blame | history
include/linux/i2c.h diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)