On Mon, Feb 27, 2012 at 03:48:31PM +0100, Frank Danapfel wrote: > > Thank you. But it looks like the patch only implements the function to > read the serial port parameters. After applying it it is still not > possible to set a parameter: > > # setserial /dev/ttyACM0 spd_hi > Cannot set serial info: Invalid argument That option makes no sense for an acm device. > An strace shows that the TIOCSSERIAL ioctl isn't available: > > # strace setserial /dev/ttyACM0 spd_hi > ... > ioctl(3, TIOCGSERIAL, 0x7fff692984e0) = 0 > ioctl(3, TIOCSSERIAL, 0x7fff69298530) = -1 EINVAL (Invalid argument) > ... > > Any chance to get this added in cdc-acm? Why do you need this, as again, it makes no sense to try to set these options when they mean nothing to the device? greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
