After a board reset, there is an approximately 30s timeout, during the port is (/dev/ttyACM0) is exist, but I cannot connect it. The gtkterm said: device or resource is busy. After 30s, I can connect it and everything is ok.
I use: Linux zamek 4.2.0-1-686-pae #1 SMP Debian 4.2.6-1 (2015-11-10) i686 GNU/Linux
and Chibios head from https://github.com/mabl/ChibiOS
here is the output of dmesg:
[ 5995.440081] usb 1-1: new full-speed USB device number 5 using uhci_hcd
[ 5995.613357] usb 1-1: New USB device found, idVendor=0483, idProduct=5740
[ 5995.613364] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5995.613368] usb 1-1: Product: ChibiOS/RT Virtual COM Port
[ 5995.613371] usb 1-1: Manufacturer: STMicroelectronics
[ 5995.613374] usb 1-1: SerialNumber: 310
[ 5995.617777] cdc_acm 1-1:1.0: ttyACM0: USB ACM device
I tried to increase/decrease the usb delay
Code: Select all
void connectConsole(void) {
shellInit();
sduObjectInit(&SDU1);
sduStart(&SDU1, &serusbcfg);
usbDisconnectBus(serusbcfg.usbp);
chThdSleepMilliseconds(1000); //<----------- 10-2000 ms
usbStart(serusbcfg.usbp, &usbcfg);
usbConnectBus(serusbcfg.usbp);
}but it couldn't helps.
Is there anybody, who has this weird behavior on Linux?
thx
Zamek
