Part Number:LINUXSDK-OMAPL138
Tool/software: Linux
Hi,
TI, I am working on the usb2.0 port of omapl138,using the kernel linux-3.3 from da850-03.22.00.06 branch.
There is a 4G module ME3630 connect to usb2.0.I had to enable the CONFIG_MUSB_SCHEDULE_INTR_EP feature because the me3630 is multiple virtual USB interfaces device(/dev/ttyUSB0~/dev/ttyUSB2).
The me3630 is work fine,but it is a problem.
After enable the CONFIG_MUSB_SCHEDULE_INTR_EP, the intterrupt of usb2.0 increase very very fast,lead to the usage rate of CPU is high.
There some photo about that.
Enable CONFIG_MUSB_SCHEDULE_INTR_EP:
Disable CONFIG_MUSB_SCHEDULE_INTR_EP:
Q:
(1) Is it normal the rate of musb-hdrc interrrupt is too fast? Why ?
(2) Are there any solution to decrease the cpu usage of kworker?