/** * pnp_is_active - Determines if a device is active based on its current * resources * @dev: pointer to the desired PnP device
*/ int pnp_is_active(struct pnp_dev *dev)
{ /* * I don't think this is very reliable because pnp_disable_dev() * only clears out auto-assigned resources.
*/ if (!pnp_port_start(dev, 0) && pnp_port_len(dev, 0) <= 1 &&
!pnp_mem_start(dev, 0) && pnp_mem_len(dev, 0) <= 1 &&
pnp_irq(dev, 0) == -1 && pnp_dma(dev, 0) == -1) return 0; else return 1;
}
EXPORT_SYMBOL(pnp_is_active);
/* * Functionally similar to acpi_ex_eisa_id_to_string(), but that's * buried in the ACPI CA, and we can't depend on it being present.
*/ void pnp_eisa_id_to_string(u32 id, char *str)
{
id = be32_to_cpu(id);
/* * According to the specs, the first three characters are five-bit * compressed ASCII, and the left-over high order bit should be zero. * However, the Linux ISAPNP code historically used six bits for the * first character, and there seem to be IDs that depend on that, * e.g., "nEC8241" in the Linux 8250_pnp serial driver and the * FreeBSD sys/pc98/cbus/sio_cbus.c driver.
*/
str[0] = 'A' + ((id >> 26) & 0x3f) - 1;
str[1] = 'A' + ((id >> 21) & 0x1f) - 1;
str[2] = 'A' + ((id >> 16) & 0x1f) - 1;
str[3] = hex_asc_hi(id >> 8);
str[4] = hex_asc_lo(id >> 8);
str[5] = hex_asc_hi(id);
str[6] = hex_asc_lo(id);
str[7] = '\0';
}
char *pnp_resource_type_name(struct resource *res)
{ switch (pnp_resource_type(res)) { case IORESOURCE_IO: return"io"; case IORESOURCE_MEM: return"mem"; case IORESOURCE_IRQ: return"irq"; case IORESOURCE_DMA: return"dma"; case IORESOURCE_BUS: return"bus";
} return"unknown";
}
if (pnp_option_is_dependent(option))
len += scnprintf(buf + len, sizeof(buf) - len, " dependent set %d (%s) ",
pnp_option_set(option),
pnp_option_priority_name(option)); else
len += scnprintf(buf + len, sizeof(buf) - len, " independent ");
switch (option->type) { case IORESOURCE_IO:
port = &option->u.port;
len += scnprintf(buf + len, sizeof(buf) - len, "io min %#llx " "max %#llx align %lld size %lld flags %#x",
(unsignedlonglong) port->min,
(unsignedlonglong) port->max,
(unsignedlonglong) port->align,
(unsignedlonglong) port->size, port->flags); break; case IORESOURCE_MEM:
mem = &option->u.mem;
len += scnprintf(buf + len, sizeof(buf) - len, "mem min %#llx " "max %#llx align %lld size %lld flags %#x",
(unsignedlonglong) mem->min,
(unsignedlonglong) mem->max,
(unsignedlonglong) mem->align,
(unsignedlonglong) mem->size, mem->flags); break; case IORESOURCE_IRQ:
irq = &option->u.irq;
len += scnprintf(buf + len, sizeof(buf) - len, "irq"); if (bitmap_empty(irq->map.bits, PNP_IRQ_NR))
len += scnprintf(buf + len, sizeof(buf) - len, " <none>"); else { for (i = 0; i < PNP_IRQ_NR; i++) if (test_bit(i, irq->map.bits))
len += scnprintf(buf + len, sizeof(buf) - len, " %d", i);
}
len += scnprintf(buf + len, sizeof(buf) - len, " flags %#x",
irq->flags); if (irq->flags & IORESOURCE_IRQ_OPTIONAL)
len += scnprintf(buf + len, sizeof(buf) - len, " (optional)"); break; case IORESOURCE_DMA:
dma = &option->u.dma;
len += scnprintf(buf + len, sizeof(buf) - len, "dma"); if (!dma->map)
len += scnprintf(buf + len, sizeof(buf) - len, " <none>"); else { for (i = 0; i < 8; i++) if (dma->map & (1 << i))
len += scnprintf(buf + len, sizeof(buf) - len, " %d", i);
}
len += scnprintf(buf + len, sizeof(buf) - len, " (bitmask %#x) " "flags %#x", dma->map, dma->flags); break;
}
pnp_dbg(&dev->dev, "%s\n", buf);
}
Messung V0.5 in Prozent
¤ Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.0.14Bemerkung:
(vorverarbeitet am 2026-04-28)
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.