Hi, we have internal discussion around serial drivers and their usage without interrupts in polling mode. It is on FPGA with Microblaze/PPC/ARM and it is easy for us to have serial IP without IRQ connected to the interrupt controller. Driver is probed with no IRQ (NO_IRQ = -1 on Microblaze) 83e00000.serial: ttyS0 at MMIO 0x83e01003 (irq = -1) is a 16550A writing any data to ttyS0 return -1. Is there any reason no to use driver in poll mode especially for user applications not for consoles. Is it possible to use serial driver without IRQ - or blocking IRQ, etc.? Currently we care about uart16550 and uarlite. Thanks, Michal -- Michal Simek, Ing. (M.Eng) w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/ Microblaze U-BOOT custodian -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
