hi all: 2012/7/18 loody <miloody@xxxxxxxxx>: > hi: > > 2012/7/18 Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>: >> On Wed, Jul 18, 2012 at 11:22:49AM +0800, loody wrote: >>> Dear all: >>> in usb_serial_probe, we create tty_port based on max_endpoints. >> >> Or based on the number that the driver said to create. >> >>> My questions are: >>> 1. some callback functions, such serial_hangup, serial_carrier_raised, >>> etc. will called by tty layer with different tty_ports. >>> how tty layer know these tty_ports? >> >> They were registered with the tty layer. >> >>> I only found tty_port_init to initial these tty_ports, but where we >>> register these tty_ports to tty layer? >> >> When we register the tty device. > Would you mind to tell me which function it is? after tracing source code, usb_serial_device_probe seems where we register tty device. But we only let tty know, tty_driver, index and struct device. it seems we don't let tty know how many tty_ports we created. Thanks for your help in advance, -- 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
