可以使用 zcat /proc/config.gz | grep RTC 或者查看内核源码中的 .config 文件。 确保内核配置中包含了RTC设备的驱动,并且驱动已经正确编译进内核或作为模块加载。 如果RTC驱动是模块,确保该模块已经被加载。可以使用 lsmod | grep rtc 查看。 4. 检查硬件连接 步骤: 确认RTC硬件设备是否正确连接到系统上。 如...
编译内核时出现drivers/rtc/hctosys.c: unable to open rtc device (rtc0)错误 还未解决
There is a rtc(pcf8563) on my device, but I found an error(unable to open rtc device) during kernel booting.my device isdm6467T, and the kernel is download from TI's websit, version is 2.6.32 my another device isDM6467, and it's kernel is 2.6.18(montavista),...
drivers/rtc/hctosys.c: unable to open rtc device (rtc0) IP-Config: Complete: device=eth0, addr=192.168.0.69, mask=255.255.255.0, gw=192.168.0.1, host=www, domain=, nis-domain=kevin.com, bootserver=192.168.0.104, rootserver=192.168.0.104, rootpath= Looking up port of RPC 100003/2 on...
drivers/rtc/hctosys.c: unable to open rtc device (rtc0) ALSA device list: No soundcards found. VFS: Unable to mount root fs via NFS, trying floppy. VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6 Please append a correct "root=" boot option; here are the avail...
[ 3.946594] Console: switching to colour frame buffer device 80x30 [ 3.962615] regulator_init_complete: VDAC: incomplete constraints, leaving on [ 3.970916] input: gpio-keys as /devices/platform/gpio-keys/input/input1 [ 3.978485] drivers/...
hctosys: unable to open rtc device (rtc0) of_cfs_init of_cfs_init: OK ALSA device list: mmc0: new high speed SDHC card at address 59b4 No soundcards found. mmcblk0: mmc0:59b4 SDU1 7.34 GiB mmcblk0: p1 p2 EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts...
[ 2.262372] imx8qxp-lpcg-clk 5b290004.clock-controller: ignoring dependency for device, assuming no driver [ 2.272348] mxs-dma 5b810000.dma-apbh: ignoring dependency for device, assuming no driver [ 2.281502] hctosys: unable to open rtc device (rtc0) ...
60.1 Linux内核RTC驱动简介 RTC设备驱动是一个标准的字符设备驱动,应用程序通过open、release、read、write和ioctl等函数完成对RTC设备的操作,关于RTC硬件原理部分我们已经在裸机篇中的第二十五章进行了详细的讲解。 Linux内核将RTC设备抽象为rtc_device结构体,因此RTC设备驱动就是申请并初始化rtc_device,最后将rtc_device...
移植linux2.6.22到s3c2440遇到drivers/rtc/hctosys.c: unable to open rtc device (rtc0) 错误提示。 网上搜索找到了解决办法,如下: 解决办法: 从启动信息可以看出没有加载成功 RTC 驱动! TCP cubic registered NET: Registered protocol family 1 RPC: Registered udp transport module. ...