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DM8168 scalar in capture driver

Hi All,

I am using RDK 4.0 and chip revision ES2.0.

Could I modify scalar parameters in capture driver dynamically?

I have found CAPTURE_LINK_CMD_ENABLE_WRBK_CAPT and CAPTURE_LINK_CMD_SET_SC_PARAMS.

It's for write back capture driver. Could someone knows the detail about write back capture driver?

I tried to use CAPTURE_LINK_CMD_SET_SC_PARAMS to set scalar parameters after capture started.

But it crash as below:

[m3vpss ] Unhandled Exception:
[m3vpss ] Exception occurred in ThreadType_Task
[m3vpss ] handle: 0x33f3e780.
[m3vpss ] stack base: 0x33fd6100.
[m3vpss ] stack size: 0x8000.
[m3vpss ] R0 = 0x00000000  R8  = 0x000ef378
[m3vpss ] R1 = 0x10020000  R9  = 0x000392d0
[m3vpss ] R2 = 0x33fde028  R10 = 0x00000001
[m3vpss ] R3 = 0x00000000  R11 = 0xffffffff
[m3vpss ] R4 = 0xd1042800  R12 = 0x92b754e5
[m3vpss ] R5 = 0x336bf0b0  SP(R13) = 0x33fde018
[m3vpss ] R6 = 0x00000470  LR(R14) = 0x92b75515
[m3vpss ] R7 = 0x00004700  PC(R15) = 0xd1042800
[m3vpss ] PSR = 0x40000000
[m3vpss ] ICSR = 0x0440f803
[m3vpss ] MMFSR = 0x01
[m3vpss ] BFSR = 0x00
[m3vpss ] UFSR = 0x0000
[m3vpss ] HFSR = 0x40000000
[m3vpss ] DFSR = 0x00000000
[m3vpss ] MMAR = 0xe000ed34
[m3vpss ] BFAR = 0xe000ed38
[m3vpss ] AFSR = 0x00000000
[m3vpss ] Terminating Execution...

Does I miss something?

Thanks!

BR,

Steven