On Mon, 7 Sep 2009, Oliver Neukum wrote: > Am Samstag, 5. September 2009 19:50:19 schrieb Paul Martin: > > cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN > > adapters drivers/usb/class/cdc-acm.c: Entering acm_tty_open. > > drivers/usb/class/cdc-acm.c: acm_control_msg: rq: 0x22 val: 0x3 len: 0x0 result: 0 > > drivers/usb/class/cdc-acm.c: tty_port_block_til_ready returned -512 > > This is very hard to explain. I can't see how tty_port_block_til_ready() > can return -512 > Are you using any non-standard patches? > Alan, does this make sense to you?i No doubt it depends on which kernel is being used. In my kernel, for instance, tty_port_block_til_ready() will return -ERESTARTSYS in multiple places if a hangup or a signal occurs. Alan Stern -- 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
