Is it possible that Julia was the second process trying to open your /dev/ttyUSB0 ? I am pretty sure that this is not the case (usinglsof, reattaching the USB and even rebooting did not change the error). I noticed that Yggdrasill has already a newer libserialport-0.1.2 that includes...
I was able to narrow down the failure to a command that pulls code from github on the remote host. (e.g. runssudo("git fetch --all")). The remote host itself runskeychainto load SSH keys into memory, but this command is run only when there's a tty available, the .bashrc on th...
如果没有实现compat_ioctl,那么32位的用户程序在64位的kernel上执行ioctl时会返回错误:Not a typewriter 2、如果是64位的用户程序运行在64位的kernel上,调用的是unlocked_ioctl,如果是32位的APP运行在32位的kernel上,调用的也是unlocked_ioctl 示例: #ifdef CONFIG_COMPAT static long debussy_compat_ioctl (struct ...
manpages-dev_5.10-1ubuntu1_all NAME ioctl_tty - ioctls for terminals and serial lines SYNOPSIS #include<termios.h>intioctl(intfd,intcmd,...); DESCRIPTION Theioctl(2) call for terminals and serial ports accepts many possible command arguments. Most require a third argument, of varying type,...
01-01 00:00:02.534 8 8 I 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 35, base_baud = 5000000) is a IMX01-01 00:00:02.535 32 32 I imx-sdma 30e10000.dma-controller: firmware found.01-01 00:00:02.551 66 66 E : trusty trusty: locked_n...
argp points to a struct vt_mode { char mode; /* vt mode */ char waitv; /* if set, hang on writes if not active */ short relsig; /* signal to raise on release req */ short acqsig; /* signal to raise on acquisition */ short frsig; /* unused (set to 0) */ ...
remove_pid(pid);break;caseSIGWINCH:if(rc_logger_tty >=0) {ioctl(STDIN_FILENO, TIOCGWINSZ, &ws);ioctl(rc_logger_tty, TIOCSWINSZ, &ws); }break;caseSIGINT:if(!signame[0])snprintf(signame,sizeof(signame),"SIGINT");/* FALLTHROUGH */caseSIGTERM:if(!signame[0])snprintf(signame,size...
-1 is returned, and errno is set appropriately. ERRORS EBADF fd is not a valid file d...
fd = sys_open("/dev/ttyO3", O_RDWR | O_NOCTTY | O_NONBLOCK,0); FELICA_DEBUG_MSG("[FELICA_UART] open UART - fd : %d \n",fd);if(fd <0) { FELICA_DEBUG_MSG("[FELICA_UART] ERROR - can not sys_open \n"); set_fs(old_fs);returnfd; ...
IOCTL_LINE_DISPLAY_WINDOW_DISPLAY_BITMAP control code 项目 2017/10/09 This control code is not implemented.Send comments about this topic to Microsoft中文(简体) 你的隐私选择 主题 管理Cookie 早期版本 博客 参与 隐私 使用条款 商标 © Microsoft 2024 ...