I can't find the following drivers on dell support drivers download page

for my laptop inspiron 15 3567:

 

1.PCI Data Acquisition and signal processing controller

PCI\VEN_8086&DEV_1903&SUBSYS_078B1028&REV_03
PCI\VEN_8086&DEV_1903&SUBSYS_078B1028
PCI\VEN_8086&DEV_1903&CC_118000
PCI\VEN_8086&DEV_1903&CC_1180

2.Universal serial bus controller

PCI\VEN_8086&DEV_9D2F&SUBSYS_078B1028&REV_21
PCI\VEN_8086&DEV_9D2F&SUBSYS_078B1028
PCI\VEN_8086&DEV_9D2F&CC_0C0330
PCI\VEN_8086&DEV_9D2F&CC_0C03

 

3.Unknown device

 

ACPI\INT3400
*INT3400

 

i'm using windows 7 64 bit.