针对你提出的“hwclock: ioctl(rtc_rd_time) to /dev/rtc0 to read the time failed: invalid argument”错误信息,这里是一些可能的解决步骤和建议: 分析错误信息: 错误信息表明hwclock命令在尝试通过ioctl系统调用读取/dev/rtc0设备的时间时遇到了问题,具体错误是“invalid argument”(无效参数)。这通常意味着提...
使用hwclock读取rtc中的时间时报错"hwclock: ioctl(RTC_RD_TIME) to /dev/rtc0 to read the time failed: No such device or address"如何处理? 1. No such device or address 这一句表明当前的板子上没有这样的外设,检查设备树和硬件连接情况 2. 笔者是这样解决的 由于设备树中为rtc所指定的总线与硬件上的...
使用hwclock读取rtc中的时间时报错"hwclock: ioctl(RTC_RD_TIME) to /dev/rtc0 to read the time failed: No such device or address"如何处理? 1. No such device or address 这一句表明当前的板子上没有这样的外设,检查设备树和硬件连接情况 2. 笔者是这样解决的 由于设备树中为rtc所指定的总线与硬件上的...
TL;DR: The Adafruit PCF8523 Real Time Clock for Raspberry Pi loses time due to a combination of issues in (1) the pcf8523 chip, (2) the pcb design and the (3) rtc-pcf8523 kernel module. Here is why: (Note: this is a technical explanation...
The error is caused by the lack of an interrupt signal from the RTC - the I and the E in RTC_UIE stand for Interrupt Enable. As you've discovered, that shouldn't stop the basic RTC functions working. boatbodger changed the title (ds1307/ds3231) hwclock: ioctl(RTC_RD_TIME) to /dev...
failed\n"); 28 return -1; 29 } 30 31.../* 获取RTC时间*/ 32 if (ioctl(fd, RTC_RD_TIME, &rtc_tm_temp) < 0) { 33 printf("RTC_RD_TIME failed\n"); 34..., &rtc_tm) < 0) { 56 printf("RTC_ALM_SET failed\n"); 57 return -1; 58 } 59 60 if (ioctl(fd, RTC_AIE...
COMPATIBLE_IOCTL(RTC_RD_TIME) /* struct rtc_time only has ints */COMPATIBLE_IOCTL(RTC_SET_TIME) /* struct rtc_time only has ints */HANDLE_IOCTL(RTC_IRQP_READ, w_long)COMPATIBLE_IOCTL(RTC_IRQP_SET)HANDLE_IOCTL(RTC_EPOCH_READ, w_long)...
使用hwclock读取rtc中的时间时报错"hwclock: ioctl(RTC_RD_TIME) to /dev/rtc0 to read the time failed: No such device or address"如何处理? 2019-09-03 18:52 −... Jello 0 4645 188. Best Time to Buy and Sell Stock IV 2019-10-10 12:00 −Say you have an array for which the i...
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