On 12/12/17, Marcin Ciupak wrote: > > this is due to fact that pi433_write returns 0 on successful copy while > it should return 'copied' value. So it is a bug :) > > '0' means nothing was copied so userpsace calls pi433_write again and > again, data is put to fifo and when it is full it goes to abort and > returns -EAGAIN and logs message write to fifo failed: 0x0 indeed you are right. I changed the return value and the error is gone! +++ b/drivers/staging/pi433/pi433_if.c @@ -845,7 +845,7 @@ static irqreturn_t DIO1_irq_handler(int irq, void *dev_id) wake_up_interruptible(&device->tx_wait_queue); dev_dbg(device->dev, "write: generated new msg with %d bytes.", copied); - return 0; + return copied; If this is the only change here I can provide a patch. Best regards, Oliver _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
