On Thu, 8 Mar 2007, Linos wrote:
> Wow your trick save my life :), it works like a charm, it detects now
> and print very well in cups hehehe, many thanks Alan. The problem i have
> now it is that i will have to patch any new kernel version with this
> hack and i will have to admin about 70 Debian machines with different
> hardware, i think that without debian binary kernels can be like live in
> the hell. Do you know any way to try that it would be patched in
> mainstream linux kernel?
Okay, below is a patch you should test. If it works, I will submit it to
be included in the kernel.
Alan Stern
Index: usb-2.6/drivers/usb/class/usblp.c
===================================================================
--- usb-2.6.orig/drivers/usb/class/usblp.c
+++ usb-2.6/drivers/usb/class/usblp.c
@@ -202,6 +202,7 @@ struct quirk_printer_struct {
#define USBLP_QUIRK_BIDIR 0x1 /* reports bidir but requires
unidirectional mode (no INs/reads) */
#define USBLP_QUIRK_USB_INIT 0x2 /* needs vendor USB init string */
+#define USBLP_QUIRK_BAD_CLASS 0x4 /* descriptor uses vendor-specific
Class or SubClass */
static const struct quirk_printer_struct quirk_printers[] = {
{ 0x03f0, 0x0004, USBLP_QUIRK_BIDIR }, /* HP DeskJet 895C */
@@ -218,6 +219,7 @@ static const struct quirk_printer_struct
{ 0x0409, 0xf0be, USBLP_QUIRK_BIDIR }, /* NEC Picty920 (HP OEM) */
{ 0x0409, 0xf1be, USBLP_QUIRK_BIDIR }, /* NEC Picty800 (HP OEM) */
{ 0x0482, 0x0010, USBLP_QUIRK_BIDIR }, /* Kyocera Mita FS 820, by zut
<[EMAIL PROTECTED]> */
+ { 0x04b8, 0x0202, USBLP_QUIRK_BAD_CLASS }, /* Seiko Epson Receipt
Printer M129C */
{ 0, 0 }
};
@@ -1048,7 +1050,8 @@ static int usblp_select_alts(struct usbl
ifd = &if_alt->altsetting[i];
if (ifd->desc.bInterfaceClass != 7 ||
ifd->desc.bInterfaceSubClass != 1)
- continue;
+ if (!(usblp->quirks & USBLP_QUIRK_BAD_CLASS))
+ continue;
if (ifd->desc.bInterfaceProtocol < USBLP_FIRST_PROTOCOL ||
ifd->desc.bInterfaceProtocol > USBLP_LAST_PROTOCOL)
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