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Date: Mon, 10 Sep 2007 20:24:36 +0200
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: Re: [Xenomai-help] adding PCI support to 16550A.c
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To: Bachman Kharazmi <bahkha@domain.hid>
Cc: xenomai@xenomai.org

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Bachman Kharazmi wrote:
> I've tried to make the pci serial controller visable to the 16550
> driver by adding:
> ## FROM 16550A.c
> static int rt_16550_interrupt(rtdm_irq_t * irq_context)
> {
> 	struct rt_16550_context *ctx;
> 	unsigned long base;
> 	int mode;
> 	int iir;
> 	uint64_t timestamp =3D rtdm_clock_read();
> 	int rbytes =3D 0;
> 	int events =3D 0;
> 	int modem;
> 	int ret =3D RTDM_IRQ_NONE;
> // TEST
> struct pci_dev *pdev =3D NULL;  // from
> http://bachman.tor.lindesign.se/tmp/driver/sunix/snx_golden.c
> pdev =3D pci_get_device(0, 0, pdev); // from
                       ^^^^^^
You need to provide the fitting vendor and device ID here. Then you have
to call pci_device_enable on that pdev - if it's not NULL (ie. not
found). That should tell us if it's already enough to enable the device.

Jan


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