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35 .Nd driver for ET4000 VME graphics cards
41 device driver supports VME graphics cards based on the Tseng ET4000 chipset.
42 It supports the minimal ioctl's needed to run X11. The 8Kb control registers
43 are mapped from offset 0x0 to offset 0x1fff and the 1MB frame buffer is mapped
44 from offset 0x400000 to offset 0x4fffff. VGA compatible memory is mapped from
45 offset 0xa0000 to offset 0xc0000.
47 Cards supported by the
53 Crazy Dots II VME graphics card
56 The clock generator on the Crazy Dots card is an ICS 1394M. Setting the
57 clock is done by writing to a register at offset 0x0. This address cannot
58 be read. The values that can be written to the register and the associated
60 .Bl -column "Value " "Clock" -offset indent
61 .It Em Value Ta Em Clock
94 .Bl -tag -width "xxxxxxxxxx" -compact
100 The driver does not support a text mode, so cannot be used as a console.