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help regarding device driver

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Old 09-08-2008
help regarding device driver
Hi All,
I have a device driver that uses UARTserial port to write/read to-from a device.
That device driver is working fine on FC3 machine( kernel version 2.6.12)...
Now I am switching to FC9 (kernel version 2.6.25.11-97).I have changed the interrupt flag SA_INTERRUPT to IRQF_DISABLED for FC9.
device driver is compiling & loading properly.My program is able to send the data as well as device is also responding but I m not able to get the data inside the PC.According to me ,recieve data line interrupt is not able to get CPU attention in properly time.may be I have to increase the priority of IRQ4.
so plz tell me how to increase the priority of IRQ4 in FC9 or any other solutuion...
Thnx in advance....

regards,
Raj
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LEARN ABOUT FREEBSD

smsc

SMSC(4) 						   BSD Kernel Interfaces Manual 						   SMSC(4)

NAME

     smsc -- USB SMSC LAN9xxx Fast Ethernet driver

SYNOPSIS

     To load the driver as a module at boot time, place the following line in loader.conf(5):

	   if_smsc_load="YES"

     Alternatively, to compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device uhci
	   device ohci
	   device usb
	   device miibus
	   device smsc

DESCRIPTION

     The smsc device driver provides support for USB Fast Ethernet adapters based on the SMSC LAN9xxx chipsets.

     For more information on configuring this device, see ifconfig(8).

HARDWARE

     The following devices are supported by the smsc driver:

     o	 SMSC LAN9500, LAN9500A, LAN9505 and LAN9505A based Ethernet adapters
     o	 SMSC LAN89530, LAN9530 and LAN9730 based Ethernet adapters
     o	 SMSC LAN951x Ethernet adapters with integrated USB hub

SEE ALSO

     arp(4), intro(4), miibus(4), netintro(4), usb(4), ifconfig(8)

HISTORY

     The smsc device driver first appeared in FreeBSD 10.0.

AUTHORS

     The smsc driver was written by Ben Gray <bgray@FreeBSD.org>.

BSD
								September 26, 2014							       BSD