1 ==============================================
2 Intel INT3496 ACPI device extcon driver docume
3 ==============================================
4
5 The Intel INT3496 ACPI device extcon driver is
6 devices with an acpi-id of INT3496, such as fo
7 Intel Baytrail and Cherrytrail tablets.
8
9 This ACPI device describes how the OS can read
10 USB-otg port, as well as how it optionally can
11 otg port and how it can optionally control the
12 between an USB host and an USB peripheral cont
13
14 The ACPI devices exposes this functionality by
15 to 3 gpio descriptors from its ACPI _CRS (Curr
16
17 ======= =====================================
18 Index 0 The input gpio for the id-pin, this i
19 Index 1 The output gpio for enabling Vbus out
20 port, write 1 to enable the Vbus outp
21 be absent or invalid)
22 Index 2 The output gpio for muxing of the dat
23 the USB peripheral controller, write
24 controller
25 ======= =====================================
26
27 There is a mapping between indices and GPIO co
28
29 ======= =======
30 id index 0
31 vbus index 1
32 mux index 2
33 ======= =======
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