On Wed, Feb 18, 2015 at 11:15:57AM +0100, faivre.laurent@xxxxxxxxxxx wrote: > >The ftdi_sio driver is the correct driver for this device, please use that one. > OK, I use it now > > >With this same device? > No, but for the same application So a different device works fine, but this specific one does not? > >Are you sure you don't have hardware flow control enabled? It's a > >common mistake with serial devices. > > no flow control needed, no flow control enabled > > I need 1200 7E1, with minicom I receive data at 115200 (or higher) 7E1, but > nothing at 1200 7E1 (or other speed lower than 115200) Hm, how are you setting the baud rate? Through minicom? And 1200 doesn't work? I tried that speed a while ago with one of my devices and it seemed to work fine, but it's an odd, slow, speed, and maybe some newer devices don't support it. I don't have one here to test with at the moment, sorry, perhaps others can try this out. > is there a FIFO buffer ? How to cancel it ? (It's a common problem with > Windows but I've never met yet with Linux) What do you mean by "fifo buffer"? The driver doesn't buffer anything up, but passes along whatever the device sends it, and is sent to it to the device. thanks, 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