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- 1970-1-1
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大家好,最近我在用imx287开发一个项目,其中涉及到要修改updater_ivt.sb,原厂提供的updater_ivt.sb用MFG工具下载updater_ivt.sb后,在串口上的打印信息有如下几行,注意看红色部分,涉及到了要启动UTP:
mxs-rtc mxs-rtc.0: setting system clock to 1970-01-01 00:00:12 UTC (12)
Freeing init memory: 124K
Starting UTP
disable turn off display
uuc 0.4 [built Dec 26 2010 23:10:08]
UTP: Waiting for device to appear
utp_mk_devnode: creating node '/dev/utp' with 10+222
cpu_id is 28
g_file_storage gadget: high speed config #1
UTP: received command 'mknod class/mtd,mtd0,/dev/mtd0'
class = 'class/mtd'
item = 'mtd0'
node = /dev/mtd0
我自己编译,生成的updater_ivt.sb也可以正常启动,打印信息如下,奇怪的是我在内核编译选项中,不知道怎么配置,导致我自己生成的updater_ivt.sb没有去启动UTP,我在源码中也搜索不到启动UTP的部分;另外我在内核编译中选上了
#define CONFIG_FSL_UTP 1
请同志们帮忙下,是不是要打上补丁之类的,如何启动UTP?
cat: can't open '/proc/devices': No such file or directory
starting pid 1808, tty '': '-/bin/sh'
BusyBox v1.20.2 () built-in shell (ash)
Enter 'help' for a list of built-in commands.
-/bin/sh: can't access tty; job control turned off
g_file_storage gadget: high speed config #1
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