请问一下，有人知道imx290和imx291有什么区别么？291用290的驱动需要改啥呀？？

楼主整好了吗？如何联系到楼主？

可在3518ev300处理器上使用吗？我根据307的驱动改了imx290的驱动适配3518ev300的sdk，编译啥的都通过了，获取图像超时，
Huawei LiteOS # sample 5
camera_Task 3

Huawei LiteOS #
input command:
sdk_test 5
[SAMPLE_COMM_VI_GetMipiLaneMode]-1923: support this chip 3518e300
[SAMPLE_COMM_VI_GetMipiLaneMode]-1923: support this chip 3518e300
[SAMPLE_COMM_VI_SetMipiAttr]-2187: ============= MipiDev 0, SetMipiAttr enWDRMode: 0
linear mode
===IMX290 1080P 30fps 12bit LINE Init OK!===
please input choose rc mode!
c) cbr.
v) vbr.
a) avbr.
x) cvbr.
q) qvbr.
f) fixQp
[SAMPLE_COMM_ISP_Thread]-379: ISP Dev 0 running !
c
press ‘q’ to exit snap!
peress any other key to capture one picture to file

prepare to snap one picture! Please wait…
[SAMPLE_COMM_VENC_GetVencStreamProc]-2065: get venc stream time out, exit thread
[SAMPLE_COMM_VENC_GetVencStreamProc]-2065: get venc stream time out, exit thread
[SAMPLE_COMM_VENC_GetVencStreamProc]-2065: get venc stream time out, exit thread
[SAMPLE_COMM_VENC_GetVencStreamProc]-2065: get venc stream time out, exit thread
[SAMPLE_COMM_VENC_GetVencStreamProc]-2065: get venc stream time out, exit thread
[SAMPLE_COMM_VENC_SnapProcess]-1463: snap time out!
[SAMPLE_VENC_MJPEG_JPEG]-1992: SAMPLE_VENC_MJPEG_JPEG: sanp process failed!
exit this sample!
[SAMPLE_COMM_VENC_GetVencStreamProc]-2065: get venc stream time out, exit thread
program exit abnormally!

main out
[END]:app_test finish!

按照imx307修改的。里面驱动没有imx290_2l_cmos_ex.h文件，我把imx307_2l_cmos_ex.h直接改名字用了，没改里面的内容，这个文件啥作用，需要修改哪些呢？