xref: /OK3568_Linux_fs/kernel/Documentation/ABI/testing/sysfs-driver-w1_ds28e17 (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunWhat:		/sys/bus/w1/devices/19-<id>/speed
2*4882a593SmuzhiyunDate:		Sep 2017
3*4882a593SmuzhiyunKernelVersion:	4.14
4*4882a593SmuzhiyunContact:	Jan Kandziora <jjj@gmx.de>
5*4882a593SmuzhiyunDescription:	When written, this file sets the I2C speed on the connected
6*4882a593Smuzhiyun		DS28E17 chip. When read, it reads the current setting from
7*4882a593Smuzhiyun		the DS28E17 chip.
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun		Valid values: 100, 400, 900 [kBaud].
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun		Default 100, can be set by w1_ds28e17.speed= module parameter.
12*4882a593SmuzhiyunUsers:		w1_ds28e17 driver
13*4882a593Smuzhiyun
14*4882a593SmuzhiyunWhat:		/sys/bus/w1/devices/19-<id>/stretch
15*4882a593SmuzhiyunDate:		Sep 2017
16*4882a593SmuzhiyunKernelVersion:	4.14
17*4882a593SmuzhiyunContact:	Jan Kandziora <jjj@gmx.de>
18*4882a593SmuzhiyunDescription:	When written, this file sets the multiplier used to calculate
19*4882a593Smuzhiyun		the busy timeout for I2C operations on the connected DS28E17
20*4882a593Smuzhiyun		chip. When read, returns the current setting.
21*4882a593Smuzhiyun		Valid values: 1 to 9.
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun		Default 1, can be set by w1_ds28e17.stretch= module parameter.
24*4882a593SmuzhiyunUsers:		w1_ds28e17 driver
25